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155252076 = 22374161739
BaseRepresentation
bin10010100000011…
…11010101101100
3101211010121210220
421100033111230
5304221031301
623223331340
73563422650
oct1120172554
9354117726
10155252076
117a6aa201
1243bb0b50
132621a645
1416894a60
15d96a936
hex940f56c

155252076 has 96 divisors (see below), whose sum is σ = 431639040. Its totient is φ = 42508800.

The previous prime is 155252057. The next prime is 155252101. The reversal of 155252076 is 670252551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209715 + ... + 210453.

It is an arithmetic number, because the mean of its divisors is an integer number (4496240).

Almost surely, 2155252076 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 155252076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215819520).

155252076 is an abundant number, since it is smaller than the sum of its proper divisors (276386964).

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

155252076 is a wasteful number, since it uses less digits than its factorization.

155252076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 155252076 is about 12460.0191011090. The cubic root of 155252076 is about 537.4595762641.

It can be divided in two parts, 1552 and 52076, that added together give a triangular number (53628 = T327).

The spelling of 155252076 in words is "one hundred fifty-five million, two hundred fifty-two thousand, seventy-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 41 42 61 82 84 122 123 164 183 244 246 287 366 427 492 574 732 739 854 861 1148 1281 1478 1708 1722 2217 2501 2562 2956 3444 4434 5002 5124 5173 7503 8868 10004 10346 15006 15519 17507 20692 30012 30299 31038 35014 45079 52521 60598 62076 70028 90158 90897 105042 121196 135237 180316 181794 210084 212093 270474 315553 363588 424186 540948 631106 636279 848372 946659 1262212 1272558 1848239 1893318 2545116 3696478 3786636 5544717 7392956 11089434 12937673 22178868 25875346 38813019 51750692 77626038 155252076