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31034054992780 = 2257314697044133
BaseRepresentation
bin1110000111001101011011…
…10100101110001110001100
311001212211022122121001201001
413003212231310232032030
513031430221034232110
6150000503102230044
76352064545661410
oct703465564561614
9131784278531631
1031034054992780
119985517a95084
123592736285324
131441663c07398
147940b05c8d40
1538c40115363a
hex1c39add2e38c

31034054992780 has 48 divisors (see below), whose sum is σ = 74484109385280. Its totient is φ = 10639907797248.

The previous prime is 31034054992777. The next prime is 31034054992789. The reversal of 31034054992780 is 8729945043013.

It is a super-2 number, since 2×310340549927802 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31034054992789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883594 + ... + 7927726.

It is an arithmetic number, because the mean of its divisors is an integer number (1551752278860).

Almost surely, 231034054992780 is an apocalyptic number.

It is an amenable number.

31034054992780 is an abundant number, since it is smaller than the sum of its proper divisors (43450054392500).

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

31034054992780 is a wasteful number, since it uses less digits than its factorization.

31034054992780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075618 (or 7075616 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 31034054992780 in words is "thirty-one trillion, thirty-four billion, fifty-four million, nine hundred ninety-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 31469 62938 125876 157345 220283 314690 440566 629380 881132 1101415 2202830 4405660 7044133 14088266 28176532 35220665 49308931 70441330 98617862 140882660 197235724 246544655 493089310 986178620 221671821377 443343642754 886687285508 1108359106885 1551702749639 2216718213770 3103405499278 4433436427540 6206810998556 7758513748195 15517027496390 31034054992780