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61307210404 = 221147229129457
BaseRepresentation
bin111001000110001100…
…011100101010100100
312212020121022222022101
4321012030130222210
52001024121213104
644055242141444
74300151455516
oct710614345244
9185217288271
1061307210404
112400035a640
12ba6b7b1884
135a2051b07b
142d7832dbb6
1518dc3b95a4
hexe4631caa4

61307210404 has 48 divisors (see below), whose sum is σ = 120054170880. Its totient is φ = 27154690560.

The previous prime is 61307210353. The next prime is 61307210411. The reversal of 61307210404 is 40401270316.

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, 408844 + ... + 538300.

It is an arithmetic number, because the mean of its divisors is an integer number (2501128560).

Almost surely, 261307210404 is an apocalyptic number.

It is an amenable number.

61307210404 is a deficient number, since it is larger than the sum of its proper divisors (58746960476).

61307210404 is a wasteful number, since it uses less digits than its factorization.

61307210404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129748 (or 129746 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 61307210404 in words is "sixty-one billion, three hundred seven million, two hundred ten thousand, four hundred four".

Divisors: 1 2 4 11 22 44 47 94 188 229 458 517 916 1034 2068 2519 5038 10076 10763 21526 43052 118393 129457 236786 258914 473572 517828 1424027 2848054 5696108 6084479 12168958 24337916 29645653 59291306 66929269 118582612 133858538 267717076 326102183 652204366 1304408732 1393345691 2786691382 5573382764 15326802601 30653605202 61307210404