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80368146 = 2331787547
BaseRepresentation
bin1001100101001…
…01001000010010
312121020010101000
410302211020102
5131033240041
611550322430
71664055315
oct462451022
9177203330
1080368146
1141402861
1222ab9416
131385bb21
14a96097c
1570c7bb6
hex4ca5212

80368146 has 32 divisors (see below), whose sum is σ = 189103680. Its totient is φ = 25213248.

The previous prime is 80368133. The next prime is 80368147. The reversal of 80368146 is 64186308.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80368146.

It is not an unprimeable number, because it can be changed into a prime (80368147) 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, 42856 + ... + 44691.

It is an arithmetic number, because the mean of its divisors is an integer number (5909490).

Almost surely, 280368146 is an apocalyptic number.

80368146 is an abundant number, since it is smaller than the sum of its proper divisors (108735534).

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

80368146 is a wasteful number, since it uses less digits than its factorization.

80368146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87575 (or 87569 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 80368146 is about 8964.8282749866. The cubic root of 80368146 is about 431.5468821512.

The spelling of 80368146 in words is "eighty million, three hundred sixty-eight thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 87547 175094 262641 525282 787923 1488299 1575846 2363769 2976598 4464897 4727538 8929794 13394691 26789382 40184073 80368146