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149971230426 = 23193745777801
BaseRepresentation
bin1000101110101011111…
…0110101111011011010
3112100002202022212102210
42023222332311323122
54424120113333201
6152521255535550
713556266265643
oct2135276657332
9470082285383
10149971230426
1158669939146
122509508a5b6
13111b0618544
147389a226ca
153d7b2ea1d6
hex22eafb5eda

149971230426 has 64 divisors (see below), whose sum is σ = 324975841920. Its totient is φ = 45977932800.

The previous prime is 149971230403. The next prime is 149971230439. The reversal of 149971230426 is 624032179941.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1888726 + ... + 1966526.

It is an arithmetic number, because the mean of its divisors is an integer number (5077747530).

Almost surely, 2149971230426 is an apocalyptic number.

149971230426 is an abundant number, since it is smaller than the sum of its proper divisors (175004611494).

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

149971230426 is a wasteful number, since it uses less digits than its factorization.

149971230426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78319.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 149971230426 in words is "one hundred forty-nine billion, nine hundred seventy-one million, two hundred thirty thousand, four hundred twenty-six".

Divisors: 1 2 3 6 19 37 38 57 74 111 114 222 457 703 914 1371 1406 2109 2742 4218 8683 16909 17366 26049 33818 50727 52098 77801 101454 155602 233403 321271 466806 642542 963813 1478219 1927626 2878637 2956438 4434657 5757274 8635911 8869314 17271822 35555057 54694103 71110114 106665171 109388206 164082309 213330342 328164618 675546083 1315537109 1351092166 2026638249 2631074218 3946611327 4053276498 7893222654 24995205071 49990410142 74985615213 149971230426