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130154661 = 3371352973
BaseRepresentation
bin1111100001000…
…00000010100101
3100001220112122000
413300200002211
5231304422121
620525355513
73140203440
oct760400245
9301815560
10130154661
116751813a
1237708b99
1320c70cc0
1413400657
15b65e526
hex7c200a5

130154661 has 32 divisors (see below), whose sum is σ = 237323520. Its totient is φ = 68651712.

The previous prime is 130154653. The next prime is 130154671. The reversal of 130154661 is 166451031.

It is not a de Polignac number, because 130154661 - 23 = 130154653 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130154671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24030 + ... + 28943.

It is an arithmetic number, because the mean of its divisors is an integer number (7416360).

Almost surely, 2130154661 is an apocalyptic number.

It is an amenable number.

130154661 is a deficient number, since it is larger than the sum of its proper divisors (107168859).

130154661 is a wasteful number, since it uses less digits than its factorization.

130154661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53002 (or 52996 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 130154661 is about 11408.5345684711. The cubic root of 130154661 is about 506.7805149192.

The spelling of 130154661 in words is "one hundred thirty million, one hundred fifty-four thousand, six hundred sixty-one".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 189 273 351 819 2457 52973 158919 370811 476757 688649 1112433 1430271 2065947 3337299 4820543 6197841 10011897 14461629 18593523 43384887 130154661