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130173240 = 23351084777
BaseRepresentation
bin1111100001001…
…00100100111000
3100001221111010010
413300210210320
5231311020430
620530021520
73140311551
oct760444470
9301844103
10130173240
116753009a
12377178a0
1320c795b2
1413407328
15b664cb0
hex7c24938

130173240 has 32 divisors (see below), whose sum is σ = 390520080. Its totient is φ = 34712832.

The previous prime is 130173229. The next prime is 130173271. The reversal of 130173240 is 42371031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542269 + ... + 542508.

Almost surely, 2130173240 is an apocalyptic number.

130173240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130173240 is an abundant number, since it is smaller than the sum of its proper divisors (260346840).

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

130173240 is a wasteful number, since it uses less digits than its factorization.

130173240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084791 (or 1084787 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 130173240 is about 11409.3487982444. The cubic root of 130173240 is about 506.8046273281.

The spelling of 130173240 in words is "one hundred thirty million, one hundred seventy-three thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1084777 2169554 3254331 4339108 5423885 6508662 8678216 10847770 13017324 16271655 21695540 26034648 32543310 43391080 65086620 130173240