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30291096644 = 22437112719531
BaseRepresentation
bin11100001101011111…
…010111010001000100
32220012001001010220022
4130031133113101010
5444014010043034
621525431154312
72121433034054
oct341537272104
986161033808
1030291096644
1111934597276
125a54515998
132b19796533
141674d81564
15bc4479b2e
hex70d7d7444

30291096644 has 48 divisors (see below), whose sum is σ = 55442128896. Its totient is φ = 14469386400.

The previous prime is 30291096631. The next prime is 30291096653. The reversal of 30291096644 is 44669019203.

It is a happy number.

It is a super-2 number, since 2×302910966442 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30291096595 and 30291096604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1541159 + ... + 1560689.

It is an arithmetic number, because the mean of its divisors is an integer number (1155044352).

Almost surely, 230291096644 is an apocalyptic number.

It is an amenable number.

30291096644 is a deficient number, since it is larger than the sum of its proper divisors (25151032252).

30291096644 is a wasteful number, since it uses less digits than its factorization.

30291096644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776 (or 19774 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 30291096644 in words is "thirty billion, two hundred ninety-one million, ninety-six thousand, six hundred forty-four".

Divisors: 1 2 4 43 71 86 127 142 172 254 284 508 3053 5461 6106 9017 10922 12212 18034 19531 21844 36068 39062 78124 387731 775462 839833 1386701 1550924 1679666 2480437 2773402 3359332 4960874 5546804 9921748 59628143 106658791 119256286 176111027 213317582 238512572 352222054 426635164 704444108 7572774161 15145548322 30291096644