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20937496693048 = 23132353896772741
BaseRepresentation
bin1001100001010111001000…
…00011011000100100111000
32202010121100010212221211021
410300223210003120210320
510221014443123134143
6112310315253512224
74260453454312135
oct460534403304470
982117303787737
1020937496693048
1167425a7053351
1224219b1342674
13b8b522305980
1452554757d58c
15264974218ced
hex130ae40d8938

20937496693048 has 256 divisors, whose sum is σ = 45536951174400. Its totient is φ = 8950497853440.

The previous prime is 20937496693031. The next prime is 20937496693049. The reversal of 20937496693048 is 84039669473902.

It is a hoax number, since the sum of its digits (70) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20937496693049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7638632958 + ... + 7638635698.

It is an arithmetic number, because the mean of its divisors is an integer number (177878715525).

Almost surely, 220937496693048 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 20937496693048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22768475587200).

20937496693048 is an abundant number, since it is smaller than the sum of its proper divisors (24599454481352).

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

20937496693048 is a wasteful number, since it uses less digits than its factorization.

20937496693048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 70.

The spelling of 20937496693048 in words is "twenty trillion, nine hundred thirty-seven billion, four hundred ninety-six million, six hundred ninety-three thousand, forty-eight".