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80040297152 = 261828768389
BaseRepresentation
bin100101010001011000…
…1100000001011000000
321122121010221101022002
41022202301200023000
52302410304002102
6100434153203132
75532321205004
oct1124261401300
9248533841262
1080040297152
1130a4372aa12
12136194004a8
1377175a399a
143c34268704
152136ccd902
hex12a2c602c0

80040297152 has 28 divisors (see below), whose sum is σ = 158840972640. Its totient is φ = 40017374976.

The previous prime is 80040297151. The next prime is 80040297203. The reversal of 80040297152 is 25179204008.

It is a super-2 number, since 2×800402971522 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80040297151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136174 + ... + 1204562.

It is an arithmetic number, because the mean of its divisors is an integer number (5672891880).

Almost surely, 280040297152 is an apocalyptic number.

It is an amenable number.

80040297152 is a deficient number, since it is larger than the sum of its proper divisors (78800675488).

80040297152 is a wasteful number, since it uses less digits than its factorization.

80040297152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86688 (or 86678 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 80040297152 in words is "eighty billion, forty million, two hundred ninety-seven thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 18287 36574 68389 73148 136778 146296 273556 292592 547112 585184 1094224 1170368 2188448 4376896 1250629643 2501259286 5002518572 10005037144 20010074288 40020148576 80040297152