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149102982 = 23272712381
BaseRepresentation
bin10001110001100…
…10000110000110
3101101120012211200
420320302012012
5301132243412
622443443330
73460232400
oct1070620606
9341505750
10149102982
117718a306
1241b26546
1324b76822
1415b33b70
15d1539dc
hex8e32186

149102982 has 72 divisors (see below), whose sum is σ = 381253392. Its totient is φ = 41983200.

The previous prime is 149102981. The next prime is 149102983. The reversal of 149102982 is 289201941.

It is an interprime number because it is at equal distance from previous prime (149102981) and next prime (149102983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149102981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61432 + ... + 63812.

It is an arithmetic number, because the mean of its divisors is an integer number (5295186).

Almost surely, 2149102982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149102982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190626696).

149102982 is an abundant number, since it is smaller than the sum of its proper divisors (232150410).

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

149102982 is a wasteful number, since it uses less digits than its factorization.

149102982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 149102982 is about 12210.7731941921. The cubic root of 149102982 is about 530.2680286652.

The spelling of 149102982 in words is "one hundred forty-nine million, one hundred two thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 71 98 126 142 147 213 294 426 441 497 639 882 994 1278 1491 2381 2982 3479 4473 4762 6958 7143 8946 10437 14286 16667 20874 21429 31311 33334 42858 50001 62622 100002 116669 150003 169051 233338 300006 338102 350007 507153 700014 1014306 1050021 1183357 1521459 2100042 2366714 3042918 3550071 7100142 8283499 10650213 16566998 21300426 24850497 49700994 74551491 149102982