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15255002212131 = 3112961772735537
BaseRepresentation
bin1101110111111101010011…
…1111001110011100100011
32000000100211022222221101210
43131333110333032130203
53444414221031242011
652240015024001203
73133065114216153
oct335772477163443
960010738887353
1015255002212131
114951679062840
121864631460203
138687047330b6
143aa4bb7a2763
151b6c3e6c06a6
hexddfd4fce723

15255002212131 has 64 divisors (see below), whose sum is σ = 23023711226880. Its totient is φ = 8899669954560.

The previous prime is 15255002212129. The next prime is 15255002212193. The reversal of 15255002212131 is 13121220055251.

It is not a de Polignac number, because 15255002212131 - 21 = 15255002212129 is a prime.

It is a super-2 number, since 2×152550022121312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15255002216131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 429253195 + ... + 429288731.

It is an arithmetic number, because the mean of its divisors is an integer number (359745487920).

Almost surely, 215255002212131 is an apocalyptic number.

15255002212131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15255002212131 is a deficient number, since it is larger than the sum of its proper divisors (7768709014749).

15255002212131 is a wasteful number, since it uses less digits than its factorization.

15255002212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36924.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 15255002212131 its reverse (13121220055251), we get a palindrome (28376222267382).

The spelling of 15255002212131 in words is "fifteen trillion, two hundred fifty-five billion, two million, two hundred twelve thousand, one hundred thirty-one".

Divisors: 1 3 11 29 33 87 319 617 727 957 1851 2181 6787 7997 17893 20361 21083 23991 35537 53679 63249 106611 196823 231913 390907 448559 590469 695739 1030573 1172721 1345677 3091719 4934149 11336303 13008211 14802447 21926329 25835399 34008909 39024633 65778987 77506197 143090321 241189619 284189389 429270963 635863541 723568857 749226571 852568167 1907590623 2247679713 6994498951 8241492281 15940441183 20983496853 24724476843 47821323549 175344853013 462272794307 526034559039 1386818382921 5085000737377 15255002212131