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30141971418 = 2313796917079
BaseRepresentation
bin11100000100100110…
…011111101111011010
32212210122102210112210
4130010212133233122
5443212321041133
621502543015550
72114642346456
oct340446375732
985718383483
1030141971418
11118683a2289
125a1259a5b6
132ac4912860
14165d243666
15bb631e763
hex70499fbda

30141971418 has 64 divisors (see below), whose sum is σ = 65847398400. Its totient is φ = 9142511040.

The previous prime is 30141971399. The next prime is 30141971443. The reversal of 30141971418 is 81417914103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 4254403 + ... + 4261481.

It is an arithmetic number, because the mean of its divisors is an integer number (1028865600).

Almost surely, 230141971418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30141971418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32923699200).

30141971418 is an abundant number, since it is smaller than the sum of its proper divisors (35705426982).

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

30141971418 is a wasteful number, since it uses less digits than its factorization.

30141971418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7867.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 30141971418 in words is "thirty billion, one hundred forty-one million, nine hundred seventy-one thousand, four hundred eighteen".

Divisors: 1 2 3 6 13 26 39 78 79 158 237 474 691 1027 1382 2054 2073 3081 4146 6162 7079 8983 14158 17966 21237 26949 42474 53898 54589 92027 109178 163767 184054 276081 327534 552162 559241 709657 1118482 1419314 1677723 2128971 3355446 4257942 4891589 7270133 9783178 14540266 14674767 21810399 29349534 43620798 63590657 127181314 190771971 381543942 386435531 772871062 1159306593 2318613186 5023661903 10047323806 15070985709 30141971418