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31742586047 = 375967217027
BaseRepresentation
bin11101100100000000…
…010110110010111111
310000221012021110001002
4131210000112302333
51010002100223142
622325441440515
72202416346434
oct354400266277
9100835243032
1031742586047
1112509953797
12619a64013b
132cbb4022c3
141771a57b8b
15c5bae0a32
hex764016cbf

31742586047 has 16 divisors (see below), whose sum is σ = 33648021120. Its totient is φ = 29907919008.

The previous prime is 31742586013. The next prime is 31742586079. The reversal of 31742586047 is 74068524713.

It is a cyclic number.

It is not a de Polignac number, because 31742586047 - 26 = 31742585983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31742585992 and 31742586010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31742586647) 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, 37748 + ... + 254774.

It is an arithmetic number, because the mean of its divisors is an integer number (2103001320).

Almost surely, 231742586047 is an apocalyptic number.

31742586047 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

31742586047 is a deficient number, since it is larger than the sum of its proper divisors (1905435073).

31742586047 is a wasteful number, since it uses less digits than its factorization.

31742586047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217190.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 31742586047 in words is "thirty-one billion, seven hundred forty-two million, five hundred eighty-six thousand, forty-seven".

Divisors: 1 37 59 67 2183 2479 3953 146261 217027 8029999 12804593 14540809 473769941 538009933 857907731 31742586047