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31294743974704 = 2472910339327281
BaseRepresentation
bin1110001110110011000000…
…00110010001001100110000
311002210202012111220110110201
413013121200012101030300
513100213113424142304
6150320335032004544
76406653633524650
oct707314006211460
9132722174813421
1031294743974704
119a76032137691
12361516a530754
13146010a635a42
147a296086a360
153940ac5733a4
hex1c7660191330

31294743974704 has 80 divisors (see below), whose sum is σ = 71754407334720. Its totient is φ = 12937011978240.

The previous prime is 31294743974597. The next prime is 31294743974713. The reversal of 31294743974704 is 40747934749213.

It is a super-2 number, since 2×312947439747042 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1308457 + ... + 8018824.

It is an arithmetic number, because the mean of its divisors is an integer number (896930091684).

Almost surely, 231294743974704 is an apocalyptic number.

It is an amenable number.

31294743974704 is an abundant number, since it is smaller than the sum of its proper divisors (40459663360016).

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

31294743974704 is a wasteful number, since it uses less digits than its factorization.

31294743974704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328358 (or 9328352 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 64.

The spelling of 31294743974704 in words is "thirty-one trillion, two hundred ninety-four billion, seven hundred forty-three million, nine hundred seventy-four thousand, seven hundred four".

Divisors: 1 2 4 7 8 14 16 28 29 56 58 112 116 203 232 406 464 812 1033 1624 2066 3248 4132 7231 8264 14462 16528 28924 29957 57848 59914 115696 119828 209699 239656 419398 479312 838796 1677592 3355184 9327281 18654562 37309124 65290967 74618248 130581934 149236496 261163868 270491149 522327736 540982298 1044655472 1081964596 1893438043 2163929192 3786876086 4327858384 7573752172 9635081273 15147504344 19270162546 30295008688 38540325092 67445568911 77080650184 134891137822 154161300368 269782275644 279417356917 539564551288 558834713834 1079129102576 1117669427668 1955921498419 2235338855336 3911842996838 4470677710672 7823685993676 15647371987352 31294743974704