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20057875002 = 23211217353233
BaseRepresentation
bin10010101011100010…
…101110001000111010
31220202212102121211100
4102223202232020322
5312034304000002
613114153512230
71310024060454
oct225342561072
956685377740
1020057875002
118563169400
123a79412676
131b7868c5b9
14d83c6d2d4
157c5d9e11c
hex4ab8ae23a

20057875002 has 72 divisors (see below), whose sum is σ = 48045707892. Its totient is φ = 6042896640.

The previous prime is 20057874943. The next prime is 20057875007.

20057875002 is a `hidden beast` number, since 20 + 0 + 57 + 87 + 500 + 2 = 666.

20057875002 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 19976712921 + 81162081 = 141339^2 + 9009^2 .

It is a super-3 number, since 3×200578750023 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20057875007) 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 35 ways as a sum of consecutive naturals, for example, 350178 + ... + 403410.

Almost surely, 220057875002 is an apocalyptic number.

20057875002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20057875002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24022853946).

20057875002 is an abundant number, since it is smaller than the sum of its proper divisors (27987832890).

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

20057875002 is a wasteful number, since it uses less digits than its factorization.

20057875002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53436 (or 53422 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 20057875002 in words is "twenty billion, fifty-seven million, eight hundred seventy-five thousand, two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 121 173 198 242 346 363 519 726 1038 1089 1557 1903 2178 3114 3806 5709 11418 17127 20933 34254 41866 53233 62799 106466 125598 159699 188397 319398 376794 479097 585563 958194 1171126 1756689 3513378 5270067 6441193 9209309 10540134 12882386 18418618 19323579 27627927 38647158 55255854 57970737 82883781 101302399 115941474 165767562 202604798 303907197 607814394 911721591 1114326389 1823443182 2228652778 3342979167 6685958334 10028937501 20057875002