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130440472 = 2319858161
BaseRepresentation
bin1111100011001…
…01110100011000
3100002110001200121
413301211310120
5231343043342
620535443024
73142503631
oct761456430
9302401617
10130440472
11676a2948
1237826474
1321041116
1413476888
15b6b9067
hex7c65d18

130440472 has 16 divisors (see below), whose sum is σ = 257448600. Its totient is φ = 61787520.

The previous prime is 130440407. The next prime is 130440487. The reversal of 130440472 is 274044031.

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, 428929 + ... + 429232.

Almost surely, 2130440472 is an apocalyptic number.

It is an amenable number.

130440472 is a deficient number, since it is larger than the sum of its proper divisors (127008128).

130440472 is a wasteful number, since it uses less digits than its factorization.

130440472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858186 (or 858182 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 130440472 is about 11421.0538918263. The cubic root of 130440472 is about 507.1511958501.

The spelling of 130440472 in words is "one hundred thirty million, four hundred forty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 19 38 76 152 858161 1716322 3432644 6865288 16305059 32610118 65220236 130440472