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1952280020 = 22519231391607
BaseRepresentation
bin111010001011101…
…0110110111010100
312001001120002201102
41310113112313110
512444240430040
6521420045232
766244051325
oct16427266724
95031502642
101952280020
11912013969
12465993818
132516099a2
141473d644c
15b65d8515
hex745d6dd4

1952280020 has 96 divisors (see below), whose sum is σ = 4538419200. Its totient is φ = 702117504.

The previous prime is 1952280013. The next prime is 1952280041. The reversal of 1952280020 is 200822591.

It is a super-2 number, since 2×19522800202 = 7622794552982400800, which contains 22 as substring.

It is a congruent number.

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, 1214057 + ... + 1215663.

It is an arithmetic number, because the mean of its divisors is an integer number (47275200).

Almost surely, 21952280020 is an apocalyptic number.

1952280020 is a gapful number since it is divisible by the number (10) 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 1952280020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2269209600).

1952280020 is an abundant number, since it is smaller than the sum of its proper divisors (2586139180).

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

1952280020 is a wasteful number, since it uses less digits than its factorization.

1952280020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1952280020 is about 44184.6129325583. The cubic root of 1952280020 is about 1249.8197115981.

The spelling of 1952280020 in words is "one billion, nine hundred fifty-two million, two hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 19 20 23 38 46 76 92 95 115 139 190 230 278 380 437 460 556 695 874 1390 1607 1748 2185 2641 2780 3197 3214 4370 5282 6394 6428 8035 8740 10564 12788 13205 15985 16070 26410 30533 31970 32140 36961 52820 60743 61066 63940 73922 121486 122132 147844 152665 184805 223373 242972 303715 305330 369610 446746 607430 610660 702259 739220 893492 1116865 1214860 1404518 2233730 2809036 3511295 4244087 4467460 5137579 7022590 8488174 10275158 14045180 16976348 20550316 21220435 25687895 42440870 51375790 84881740 97614001 102751580 195228002 390456004 488070005 976140010 1952280020