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149663982 = 23131918769
BaseRepresentation
bin10001110101110…
…11000011101110
3101102121201101110
420322323003232
5301303221412
622503452450
73465060066
oct1072730356
9342551343
10149663982
1177532846
1242157126
1325011c90
1415c3c3a6
15d214d3c
hex8ebb0ee

149663982 has 16 divisors (see below), whose sum is σ = 322353360. Its totient is φ = 46050432.

The previous prime is 149663959. The next prime is 149663993. The reversal of 149663982 is 289366941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959307 + ... + 959462.

It is an arithmetic number, because the mean of its divisors is an integer number (20147085).

Almost surely, 2149663982 is an apocalyptic number.

149663982 is an abundant number, since it is smaller than the sum of its proper divisors (172689378).

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

149663982 is a wasteful number, since it uses less digits than its factorization.

149663982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918787.

The product of its digits is 559872, while the sum is 48.

The square root of 149663982 is about 12233.7231454697. The cubic root of 149663982 is about 530.9322408493.

The spelling of 149663982 in words is "one hundred forty-nine million, six hundred sixty-three thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 78 1918769 3837538 5756307 11512614 24943997 49887994 74831991 149663982