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149642630 = 25109313691
BaseRepresentation
bin10001110101101…
…01110110000110
3101102120122002122
420322311312012
5301302031010
622503205542
73464640614
oct1072656606
9342518078
10149642630
11775187a5
12421468b2
1325005347
1415c346b4
15d20d855
hex8eb5d86

149642630 has 16 divisors (see below), whose sum is σ = 269622864. Its totient is φ = 59797920.

The previous prime is 149642617. The next prime is 149642641. The reversal of 149642630 is 36246941.

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, 4085 + ... + 17775.

It is an arithmetic number, because the mean of its divisors is an integer number (16851429).

Almost surely, 2149642630 is an apocalyptic number.

149642630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149642630 is a deficient number, since it is larger than the sum of its proper divisors (119980234).

149642630 is a wasteful number, since it uses less digits than its factorization.

149642630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14791.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 149642630 is about 12232.8504446020. The cubic root of 149642630 is about 530.9069909435.

The spelling of 149642630 in words is "one hundred forty-nine million, six hundred forty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 1093 2186 5465 10930 13691 27382 68455 136910 14964263 29928526 74821315 149642630