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30146461344 = 2532229457097
BaseRepresentation
bin11100000100110111…
…100111111010100000
32212210221212220120100
4130010313213322200
5443214443230334
621503223142400
72115025456566
oct340467477240
985727786510
1030146461344
111186a98966a
125a13ba4a00
132ac582540c
14165da91a36
15bb6909c99
hex704de7ea0

30146461344 has 72 divisors (see below), whose sum is σ = 86103550260. Its totient is φ = 10004917248.

The previous prime is 30146461343. The next prime is 30146461351. The reversal of 30146461344 is 44316464103.

30146461344 is a `hidden beast` number, since 3 + 0 + 1 + 4 + 646 + 1 + 3 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19493744400 + 10652716944 = 139620^2 + 103212^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 30146461299 and 30146461308.

It is not an unprimeable number, because it can be changed into a prime (30146461343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162597 + ... + 294500.

Almost surely, 230146461344 is an apocalyptic number.

It is an amenable number.

30146461344 is an abundant number, since it is smaller than the sum of its proper divisors (55957088916).

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

30146461344 is a wasteful number, since it uses less digits than its factorization.

30146461344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457342 (or 457331 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 30146461344 in words is "thirty billion, one hundred forty-six million, four hundred sixty-one thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 229 288 458 687 916 1374 1832 2061 2748 3664 4122 5496 7328 8244 10992 16488 21984 32976 65952 457097 914194 1371291 1828388 2742582 3656776 4113873 5485164 7313552 8227746 10970328 14627104 16455492 21940656 32910984 43881312 65821968 104675213 131643936 209350426 314025639 418700852 628051278 837401704 942076917 1256102556 1674803408 1884153834 2512205112 3349606816 3768307668 5024410224 7536615336 10048820448 15073230672 30146461344