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80133020742 = 23157431197371
BaseRepresentation
bin100101010100001001…
…1001101110001000110
321122211121102020011010
41022220103031301012
52303103023130432
6100451304423050
75534525303115
oct1125023156106
9248747366133
1080133020742
1130a91001585
1213644477a86
13773086a508
143c426c3c7c
15213eee73cc
hex12a84cdc46

80133020742 has 32 divisors (see below), whose sum is σ = 161661878784. Its totient is φ = 26479159200.

The previous prime is 80133020731. The next prime is 80133020767. The reversal of 80133020742 is 24702033108.

It is a congruent number.

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, 307317 + ... + 504687.

It is an arithmetic number, because the mean of its divisors is an integer number (5051933712).

Almost surely, 280133020742 is an apocalyptic number.

80133020742 is an abundant number, since it is smaller than the sum of its proper divisors (81528858042).

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

80133020742 is a wasteful number, since it uses less digits than its factorization.

80133020742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197964.

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 80133020742 in words is "eighty billion, one hundred thirty-three million, twenty thousand, seven hundred forty-two".

Divisors: 1 2 3 6 157 314 431 471 862 942 1293 2586 67667 135334 197371 203001 394742 406002 592113 1184226 30987247 61974494 85066901 92961741 170133802 185923482 255200703 510401406 13355503457 26711006914 40066510371 80133020742