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30315871590 = 23579101912553
BaseRepresentation
bin11100001110111101…
…110111110101100110
32220020202122211201220
4130032331313311212
5444041330342330
621532114201210
72122153441164
oct341675676546
986222584656
1030315871590
1111947579034
125a60883206
132b2195c174
141678390234
15bc6720710
hex70ef77d66

30315871590 has 64 divisors (see below), whose sum is σ = 73757260800. Its totient is φ = 7973432064.

The previous prime is 30315871583. The next prime is 30315871603. The reversal of 30315871590 is 9517851303.

It is a super-2 number, since 2×303158715902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2408754 + ... + 2421306.

It is an arithmetic number, because the mean of its divisors is an integer number (1152457200).

Almost surely, 230315871590 is an apocalyptic number.

30315871590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30315871590 is an abundant number, since it is smaller than the sum of its proper divisors (43441389210).

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

30315871590 is a wasteful number, since it uses less digits than its factorization.

30315871590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13661.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 30315871590 in words is "thirty billion, three hundred fifteen million, eight hundred seventy-one thousand, five hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1019 1185 2038 2370 3057 5095 6114 10190 12553 15285 25106 30570 37659 62765 75318 80501 125530 161002 188295 241503 376590 402505 483006 805010 991687 1207515 1983374 2415030 2975061 4958435 5950122 9916870 12791507 14875305 25583014 29750610 38374521 63957535 76749042 127915070 191872605 383745210 1010529053 2021058106 3031587159 5052645265 6063174318 10105290530 15157935795 30315871590