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130051405 = 51121032087
BaseRepresentation
bin1111100000001…
…10110101001101
3100001201021222201
413300012311031
5231243121110
620523241501
73136263421
oct760066515
9301637881
10130051405
1167457600
1237679291
1320c35cc3
14133b4b81
15b63db3a
hex7c06d4d

130051405 has 24 divisors (see below), whose sum is σ = 173287296. Its totient is φ = 93619680.

The previous prime is 130051387. The next prime is 130051433. The reversal of 130051405 is 504150031.

130051405 = 4562 + 4572 + ... + 7852.

It is not a de Polignac number, because 130051405 - 217 = 129920333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61272 + ... + 63358.

It is an arithmetic number, because the mean of its divisors is an integer number (7220304).

Almost surely, 2130051405 is an apocalyptic number.

It is an amenable number.

130051405 is a deficient number, since it is larger than the sum of its proper divisors (43235891).

130051405 is a wasteful number, since it uses less digits than its factorization.

130051405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217 (or 2206 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 130051405 is about 11404.0082865631. The cubic root of 130051405 is about 506.6464642126.

The spelling of 130051405 in words is "one hundred thirty million, fifty-one thousand, four hundred five".

Divisors: 1 5 11 55 103 121 515 605 1133 2087 5665 10435 12463 22957 62315 114785 214961 252527 1074805 1262635 2364571 11822855 26010281 130051405