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149656238974 = 21147931419269
BaseRepresentation
bin1000101101100000110…
…1001111101101111110
3112022021210121122101201
42023120031033231332
54422443444121344
6152430124330114
713545423020344
oct2133015175576
9468253548351
10149656238974
1158518055430
12250076a393a
131116029bc78
147359c69994
153d5d8294d4
hex22d834fb7e

149656238974 has 16 divisors (see below), whose sum is σ = 244943293680. Its totient is φ = 68011322560.

The previous prime is 149656238971. The next prime is 149656238981. The reversal of 149656238974 is 479832656941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149656238971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604189 + ... + 815080.

It is an arithmetic number, because the mean of its divisors is an integer number (15308955855).

Almost surely, 2149656238974 is an apocalyptic number.

149656238974 is a deficient number, since it is larger than the sum of its proper divisors (95287054706).

149656238974 is a wasteful number, since it uses less digits than its factorization.

149656238974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424075.

The product of its digits is 78382080, while the sum is 64.

The spelling of 149656238974 in words is "one hundred forty-nine billion, six hundred fifty-six million, two hundred thirty-eight thousand, nine hundred seventy-four".

Divisors: 1 2 11 22 4793 9586 52723 105446 1419269 2838538 15611959 31223918 6802556317 13605112634 74828119487 149656238974