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155372196 = 223719671453
BaseRepresentation
bin10010100001011…
…00101010100100
3101211100201120210
421100230222210
5304233402241
623230055420
73564433110
oct1120545244
9354321523
10155372196
117a781481
124404a570
1326260215
14168c6740
15d991316
hex942caa4

155372196 has 96 divisors (see below), whose sum is σ = 442946560. Its totient is φ = 41399424.

The previous prime is 155372183. The next prime is 155372207. The reversal of 155372196 is 691273551.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 106206 + ... + 107658.

Almost surely, 2155372196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155372196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221473280).

155372196 is an abundant number, since it is smaller than the sum of its proper divisors (287574364).

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

155372196 is a wasteful number, since it uses less digits than its factorization.

155372196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1551 counting only the distinct ones).

The product of its digits is 56700, while the sum is 39.

The square root of 155372196 is about 12464.8383864373. The cubic root of 155372196 is about 537.5981530505.

The spelling of 155372196 in words is "one hundred fifty-five million, three hundred seventy-two thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 67 76 84 114 133 134 201 228 266 268 399 402 469 532 798 804 938 1273 1407 1453 1596 1876 2546 2814 2906 3819 4359 5092 5628 5812 7638 8718 8911 10171 15276 17436 17822 20342 26733 27607 30513 35644 40684 53466 55214 61026 82821 97351 106932 110428 122052 165642 193249 194702 292053 331284 386498 389404 579747 584106 681457 772996 1159494 1168212 1362914 1849669 2044371 2318988 2725828 3699338 4088742 5549007 7398676 8177484 11098014 12947683 22196028 25895366 38843049 51790732 77686098 155372196