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149142462 = 23717892347
BaseRepresentation
bin10001110001110…
…11101110111110
3101101122012222220
420320323232332
5301140024322
622444350210
73460455450
oct1070735676
9341565886
10149142462
1177206a37
1241b45366
1324b8b7a1
1415b442d0
15d16055c
hex8e3bbbe

149142462 has 64 divisors (see below), whose sum is σ = 365160960. Its totient is φ = 39638016.

The previous prime is 149142437. The next prime is 149142467. The reversal of 149142462 is 264241941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149142467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62373 + ... + 64719.

It is an arithmetic number, because the mean of its divisors is an integer number (5705640).

Almost surely, 2149142462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149142462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182580480).

149142462 is an abundant number, since it is smaller than the sum of its proper divisors (216018498).

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

149142462 is a wasteful number, since it uses less digits than its factorization.

149142462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465.

The product of its digits is 13824, while the sum is 33.

The square root of 149142462 is about 12212.3896924394. The cubic root of 149142462 is about 530.3148265987.

The spelling of 149142462 in words is "one hundred forty-nine million, one hundred forty-two thousand, four hundred sixty-two".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 89 102 119 178 238 267 357 534 623 714 1246 1513 1869 2347 3026 3738 4539 4694 7041 9078 10591 14082 16429 21182 31773 32858 39899 49287 63546 79798 98574 119697 208883 239394 279293 417766 558586 626649 837879 1253298 1462181 1675758 2924362 3551011 4386543 7102022 8773086 10653033 21306066 24857077 49714154 74571231 149142462