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130454442 = 23316314821
BaseRepresentation
bin1111100011010…
…01001110101010
3100002110202212000
413301221032222
5231344020232
620540031430
73142562436
oct761511652
9302422760
10130454442
1167702398
1237832576
13210475a1
141347b9c6
15b6bd27c
hex7c693aa

130454442 has 32 divisors (see below), whose sum is σ = 291696960. Its totient is φ = 43215120.

The previous prime is 130454407. The next prime is 130454461. The reversal of 130454442 is 244454031.

It is a happy number.

It is a super-2 number, since 2×1304544422 = 34036722875062728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1392 + ... + 16212.

It is an arithmetic number, because the mean of its divisors is an integer number (9115530).

Almost surely, 2130454442 is an apocalyptic number.

130454442 is an abundant number, since it is smaller than the sum of its proper divisors (161242518).

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

130454442 is a wasteful number, since it uses less digits than its factorization.

130454442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995 (or 14989 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 130454442 is about 11421.6654652463. The cubic root of 130454442 is about 507.1693002753.

The spelling of 130454442 in words is "one hundred thirty million, four hundred fifty-four thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 163 326 489 978 1467 2934 4401 8802 14821 29642 44463 88926 133389 266778 400167 800334 2415823 4831646 7247469 14494938 21742407 43484814 65227221 130454442