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2072556512 = 251321792141
BaseRepresentation
bin111101110001000…
…1011001111100000
312100102212210001022
41323202023033200
513221033302022
6541354025012
7102234303545
oct17342131740
95312783038
102072556512
119739a4424
1249a118168
132704cc700
14159384bcc
15c1e45c42
hex7b88b3e0

2072556512 has 72 divisors (see below), whose sum is σ = 4445121240. Its totient is φ = 950776320.

The previous prime is 2072556511. The next prime is 2072556523. The reversal of 2072556512 is 2156552702.

It is a super-2 number, since 2×20725565122 = 8590980990867212288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072556511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 966962 + ... + 969102.

It is an arithmetic number, because the mean of its divisors is an integer number (61737795).

Almost surely, 22072556512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2072556512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222560620).

2072556512 is an abundant number, since it is smaller than the sum of its proper divisors (2372564728).

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

2072556512 is a wasteful number, since it uses less digits than its factorization.

2072556512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 2072556512 is about 45525.3392299278. The cubic root of 2072556512 is about 1274.9763444541.

The spelling of 2072556512 in words is "two billion, seventy-two million, five hundred fifty-six thousand, five hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 104 169 179 208 338 358 416 676 716 1352 1432 2141 2327 2704 2864 4282 4654 5408 5728 8564 9308 17128 18616 27833 30251 34256 37232 55666 60502 68512 74464 111332 121004 222664 242008 361829 383239 445328 484016 723658 766478 890656 968032 1447316 1532956 2894632 3065912 4982107 5789264 6131824 9964214 11578528 12263648 19928428 39856856 64767391 79713712 129534782 159427424 259069564 518139128 1036278256 2072556512