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130161944 = 23111479113
BaseRepresentation
bin1111100001000…
…01110100011000
3100001220220121202
413300201310120
5231310140234
620525453332
73140233613
oct760416430
9301826552
10130161944
1167522660
1237711248
1320c74403
141340317a
15b66177e
hex7c21d18

130161944 has 16 divisors (see below), whose sum is σ = 266240520. Its totient is φ = 59164480.

The previous prime is 130161937. The next prime is 130161953. The reversal of 130161944 is 449161031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739469 + ... + 739644.

Almost surely, 2130161944 is an apocalyptic number.

It is an amenable number.

130161944 is an abundant number, since it is smaller than the sum of its proper divisors (136078576).

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

130161944 is a wasteful number, since it uses less digits than its factorization.

130161944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479130 (or 1479126 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 130161944 is about 11408.8537548695. The cubic root of 130161944 is about 506.7899672984.

The spelling of 130161944 in words is "one hundred thirty million, one hundred sixty-one thousand, nine hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 1479113 2958226 5916452 11832904 16270243 32540486 65080972 130161944