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2030120040 = 2335137118329
BaseRepresentation
bin111100100000001…
…0010110001101000
312020111000210011010
41321000102301220
513124202320130
6533240303520
7101210510214
oct17100226150
95214023133
102030120040
11951a4a263
12487a71ba0
13264791b80
14153899944
15bd3620b0
hex79012c68

2030120040 has 128 divisors (see below), whose sum is σ = 6651590400. Its totient is φ = 492656640.

The previous prime is 2030120039. The next prime is 2030120051. The reversal of 2030120040 is 400210302.

2030120040 = T434 + T435 + ... + T2305.

It is a super-3 number, since 3×20301200403 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2030119998 and 2030120025.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101596 + ... + 119924.

It is an arithmetic number, because the mean of its divisors is an integer number (51965550).

Almost surely, 22030120040 is an apocalyptic number.

2030120040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2030120040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3325795200).

2030120040 is an abundant number, since it is smaller than the sum of its proper divisors (4621470360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2030120040 is a wasteful number, since it uses less digits than its factorization.

2030120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18427 (or 18423 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2030120040 is about 45056.8534187642. The cubic root of 2030120040 is about 1266.2143743751.

Adding to 2030120040 its reverse (400210302), we get a palindrome (2430330342).

The spelling of 2030120040 in words is "two billion, thirty million, one hundred twenty thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 71 78 104 120 130 142 156 195 213 260 284 312 355 390 426 520 568 710 780 852 923 1065 1420 1560 1704 1846 2130 2769 2840 3692 4260 4615 5538 7384 8520 9230 11076 13845 18329 18460 22152 27690 36658 36920 54987 55380 73316 91645 109974 110760 146632 183290 219948 238277 274935 366580 439896 476554 549870 714831 733160 953108 1099740 1191385 1301359 1429662 1906216 2199480 2382770 2602718 2859324 3574155 3904077 4765540 5205436 5718648 6506795 7148310 7808154 9531080 10410872 13013590 14296620 15616308 16917667 19520385 26027180 28593240 31232616 33835334 39040770 50753001 52054360 67670668 78081540 84588335 101506002 135341336 156163080 169176670 203012004 253765005 338353340 406024008 507530010 676706680 1015060020 2030120040