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155472130 = 251131127359
BaseRepresentation
bin10010100010001…
…01000100000010
3101211112210200001
421101011010002
5304300102010
623232150214
73565330342
oct1121050402
9354483601
10155472130
117a83a570
124409836a
1326296858
1416910d22
15d9b0c3a
hex9445102

155472130 has 64 divisors (see below), whose sum is σ = 318504960. Its totient is φ = 54129600.

The previous prime is 155472101. The next prime is 155472151. The reversal of 155472130 is 31274551.

It is a happy number.

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, 432891 + ... + 433249.

It is an arithmetic number, because the mean of its divisors is an integer number (4976640).

Almost surely, 2155472130 is an apocalyptic number.

155472130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155472130 is an abundant number, since it is smaller than the sum of its proper divisors (163032830).

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

155472130 is a wasteful number, since it uses less digits than its factorization.

155472130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 155472130 is about 12468.8463780736. The cubic root of 155472130 is about 537.7133877814.

The spelling of 155472130 in words is "one hundred fifty-five million, four hundred seventy-two thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 31 55 62 110 127 155 254 310 341 359 635 682 718 1270 1397 1705 1795 2794 3410 3590 3937 3949 6985 7874 7898 11129 13970 19685 19745 22258 39370 39490 43307 45593 55645 86614 91186 111290 122419 216535 227965 244838 433070 455930 501523 612095 1003046 1224190 1413383 2507615 2826766 5015230 7066915 14133830 15547213 31094426 77736065 155472130