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315105524130 = 235196135325673
BaseRepresentation
bin1001001010111011100…
…00001011100110100010
31010010100020122011022210
410211131300023212202
520130314003233010
6400431340542550
731523415522315
oct4453560134642
91103306564283
10315105524130
111116a9943141
12510a0251a56
13239394a3977
141137339497c
1582e38b9b20
hex495dc0b9a2

315105524130 has 128 divisors (see below), whose sum is σ = 811429850880. Its totient is φ = 78075740160.

The previous prime is 315105524087. The next prime is 315105524131. The reversal of 315105524130 is 31425501513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (315105524131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12260974 + ... + 12286646.

It is an arithmetic number, because the mean of its divisors is an integer number (6339295710).

Almost surely, 2315105524130 is an apocalyptic number.

315105524130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 315105524130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405714925440).

315105524130 is an abundant number, since it is smaller than the sum of its proper divisors (496324326750).

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

315105524130 is a wasteful number, since it uses less digits than its factorization.

315105524130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26116.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 315105524130 in words is "three hundred fifteen billion, one hundred five million, five hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 61 95 114 122 183 190 285 305 353 366 570 610 706 915 1059 1159 1765 1830 2118 2318 3477 3530 5295 5795 6707 6954 10590 11590 13414 17385 20121 21533 25673 33535 34770 40242 43066 51346 64599 67070 77019 100605 107665 128365 129198 154038 201210 215330 256730 322995 385095 409127 487787 645990 770190 818254 975574 1227381 1463361 1566053 2045635 2438935 2454762 2926722 3132106 4091270 4698159 4877870 6136905 7316805 7830265 9062569 9396318 12273810 14633610 15660530 18125138 23490795 27187707 29755007 45312845 46981590 54375414 59510014 89265021 90625690 135938535 148775035 172188811 178530042 271877070 297550070 344377622 446325105 516566433 552816709 860944055 892650210 1033132866 1105633418 1658450127 1721888110 2582832165 2764083545 3316900254 5165664330 5528167090 8292250635 10503517471 16584501270 21007034942 31510552413 52517587355 63021104826 105035174710 157552762065 315105524130