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20874331913319 = 342351109616249
BaseRepresentation
bin1001011111100001011110…
…01000110111110001100111
32201220120022002012200110000
410233300233020313301213
510214001112432211234
6112221311413232343
74253056255454313
oct457605710676147
981816262180400
1020874331913319
116718833199455
1224117036326b3
13b85596cbc071
1452247466cb43
15262ec8c23899
hex12fc2f237c67

20874331913319 has 20 divisors (see below), whose sum is σ = 31195907820000. Its totient is φ = 13910301871200.

The previous prime is 20874331913317. The next prime is 20874331913353. The reversal of 20874331913319 is 91331913347802.

20874331913319 is a `hidden beast` number, since 2 + 0 + 8 + 7 + 4 + 3 + 319 + 1 + 3 + 319 = 666.

It is not a de Polignac number, because 20874331913319 - 21 = 20874331913317 is a prime.

It is a super-2 number, since 2×208743319133192 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20874331913317) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54617694 + ... + 54998555.

It is an arithmetic number, because the mean of its divisors is an integer number (1559795391000).

Almost surely, 220874331913319 is an apocalyptic number.

20874331913319 is a deficient number, since it is larger than the sum of its proper divisors (10321575906681).

20874331913319 is a wasteful number, since it uses less digits than its factorization.

20874331913319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109618612 (or 109618603 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 20874331913319 in words is "twenty trillion, eight hundred seventy-four billion, three hundred thirty-one million, nine hundred thirteen thousand, three hundred nineteen".

Divisors: 1 3 9 27 81 2351 7053 21159 63477 190431 109616249 328848747 986546241 2959638723 8878916169 257707801399 773123404197 2319370212591 6958110637773 20874331913319