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130042304 = 2672811033
BaseRepresentation
bin1111100000001…
…00100111000000
3100001200211111122
413300010213000
5231242323204
620523131412
73136225040
oct760044700
9301624448
10130042304
1167450787
1237673b68
1320c31b12
14133b1720
15b63b0be
hex7c049c0

130042304 has 56 divisors (see below), whose sum is σ = 296253408. Its totient is φ = 55480320.

The previous prime is 130042291. The next prime is 130042307. The reversal of 130042304 is 403240031.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1300423042 = 33822001659256832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130042307) 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, 125372 + ... + 126404.

Almost surely, 2130042304 is an apocalyptic number.

130042304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130042304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148126704).

130042304 is an abundant number, since it is smaller than the sum of its proper divisors (166211104).

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

130042304 is a wasteful number, since it uses less digits than its factorization.

130042304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130042304 is about 11403.6092532145. The cubic root of 130042304 is about 506.6346455602.

Adding to 130042304 its reverse (403240031), we get a palindrome (533282335).

The spelling of 130042304 in words is "one hundred thirty million, forty-two thousand, three hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 281 448 562 1033 1124 1967 2066 2248 3934 4132 4496 7231 7868 8264 8992 14462 15736 16528 17984 28924 31472 33056 57848 62944 66112 115696 125888 231392 290273 462784 580546 1161092 2031911 2322184 4063822 4644368 8127644 9288736 16255288 18577472 32510576 65021152 130042304