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20762012530 = 2571633834751
BaseRepresentation
bin10011010101100000…
…110010101101110010
31222120221101111221001
4103111200302231302
5320010033400110
613312105552214
71333334123530
oct232540625562
958527344831
1020762012530
118894684346
1240351a566a
131c5b51a01c
14100d5a3150
15817adc63a
hex4d5832b72

20762012530 has 64 divisors (see below), whose sum is σ = 43093721088. Its totient is φ = 7054776000.

The previous prime is 20762012489. The next prime is 20762012539. The reversal of 20762012530 is 3521026702.

It is a super-2 number, since 2×207620125302 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20762012539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4367655 + ... + 4372405.

It is an arithmetic number, because the mean of its divisors is an integer number (673339392).

Almost surely, 220762012530 is an apocalyptic number.

20762012530 is an abundant number, since it is smaller than the sum of its proper divisors (22331708558).

20762012530 is a wasteful number, since it uses less digits than its factorization.

20762012530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5311.

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 20762012530 in words is "twenty billion, seven hundred sixty-two million, twelve thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 163 326 383 766 815 1141 1630 1915 2282 2681 3830 4751 5362 5705 9502 11410 13405 23755 26810 33257 47510 62429 66514 124858 166285 312145 332570 437003 624290 774413 874006 1548826 1819633 2185015 3639266 3872065 4370030 5420891 7744130 9098165 10841782 12737431 18196330 25474862 27104455 54208910 63687155 127374310 296600179 593200358 1483000895 2076201253 2966001790 4152402506 10381006265 20762012530