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20370687152 = 242950387281
BaseRepresentation
bin10010111110001100…
…000000010010110000
31221120200001010102112
4102332030000102300
5313204343442102
613205210304452
71320542661314
oct227614002260
957520033375
1020370687152
1187037a3842
123b46128128
131bc8424c4a
14db3619b44
157e358e252
hex4be3004b0

20370687152 has 40 divisors (see below), whose sum is σ = 40910819040. Its totient is φ = 9814461440.

The previous prime is 20370687049. The next prime is 20370687187. The reversal of 20370687152 is 25178607302.

It is a super-2 number, since 2×203706871522 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189752 + ... + 277032.

It is an arithmetic number, because the mean of its divisors is an integer number (1022770476).

Almost surely, 220370687152 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 20370687152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20455409520).

20370687152 is an abundant number, since it is smaller than the sum of its proper divisors (20540131888).

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

20370687152 is a wasteful number, since it uses less digits than its factorization.

20370687152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87821 (or 87815 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 20370687152 in words is "twenty billion, three hundred seventy million, six hundred eighty-seven thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 29 58 116 232 464 503 1006 2012 4024 8048 14587 29174 58348 87281 116696 174562 233392 349124 698248 1396496 2531149 5062298 10124596 20249192 40498384 43902343 87804686 175609372 351218744 702437488 1273167947 2546335894 5092671788 10185343576 20370687152