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130012155 = 33571319557
BaseRepresentation
bin1111011111111…
…01001111111011
3100001122022011000
413233331033323
5231240342110
620522340043
73136041120
oct757751773
9301568130
10130012155
1167430069
123765a623
1320c21190
14133a4747
15b6321c0
hex7bfd3fb

130012155 has 128 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 51881472.

The previous prime is 130012153. The next prime is 130012187. The reversal of 130012155 is 551210031.

It is not a de Polignac number, because 130012155 - 21 = 130012153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130012151) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 233137 + ... + 233693.

It is an arithmetic number, because the mean of its divisors is an integer number (2343600).

Almost surely, 2130012155 is an apocalyptic number.

130012155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130012155 is an abundant number, since it is smaller than the sum of its proper divisors (169968645).

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

130012155 is a wasteful number, since it uses less digits than its factorization.

130012155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 130012155 is about 11402.2872705436. The cubic root of 130012155 is about 506.5954898188.

Adding to 130012155 its reverse (551210031), we get a palindrome (681222186).

The spelling of 130012155 in words is "one hundred thirty million, twelve thousand, one hundred fifty-five".

Divisors: 1 3 5 7 9 13 15 19 21 27 35 39 45 57 63 65 91 95 105 117 133 135 171 189 195 247 273 285 315 351 399 455 513 557 585 665 741 819 855 945 1197 1235 1365 1671 1729 1755 1995 2223 2457 2565 2785 3591 3705 3899 4095 5013 5187 5985 6669 7241 8355 8645 10583 11115 11697 12285 15039 15561 17955 19495 21723 25065 25935 31749 33345 35091 36205 46683 50687 52915 58485 65169 74081 75195 77805 95247 105273 108615 137579 152061 158745 175455 195507 222243 233415 253435 285741 325845 370405 412737 456183 476235 526365 666729 687895 760305 963053 977535 1111215 1238211 1368549 1428705 2000187 2063685 2280915 2889159 3333645 3714633 4815265 6191055 6842745 8667477 10000935 14445795 18573165 26002431 43337385 130012155