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130155501 = 376197881
BaseRepresentation
bin1111100001000…
…00001111101101
3100001220120210010
413300200033231
5231304434001
620525403433
73140206050
oct760401755
9301816703
10130155501
1167518833
1237709579
1320c714b8
1413400a97
15b65e8d6
hex7c203ed

130155501 has 8 divisors (see below), whose sum is σ = 198332224. Its totient is φ = 74374560.

The previous prime is 130155499. The next prime is 130155503. The reversal of 130155501 is 105551031.

It is an interprime number because it is at equal distance from previous prime (130155499) and next prime (130155503).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130155501 - 21 = 130155499 is a prime.

It is a super-2 number, since 2×1301555012 = 33880908881122002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6197881 = 130155501 / (1 + 3 + 0 + 1 + 5 + 5 + 5 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130155503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3098920 + ... + 3098961.

It is an arithmetic number, because the mean of its divisors is an integer number (24791528).

Almost surely, 2130155501 is an apocalyptic number.

It is an amenable number.

130155501 is a deficient number, since it is larger than the sum of its proper divisors (68176723).

130155501 is an equidigital number, since it uses as much as digits as its factorization.

130155501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197891.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 130155501 is about 11408.5713829559. The cubic root of 130155501 is about 506.7816051470.

The spelling of 130155501 in words is "one hundred thirty million, one hundred fifty-five thousand, five hundred one".

Divisors: 1 3 7 21 6197881 18593643 43385167 130155501