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130670540 = 2257111361107
BaseRepresentation
bin1111100100111…
…01111111001100
3100002212202021122
413302131333030
5231422424130
620544420112
73144452450
oct762357714
9302782248
10130670540
116783a790
1237917638
13210c1a60
14134d6660
15b7122e5
hex7c9dfcc

130670540 has 192 divisors, whose sum is σ = 377975808. Its totient is φ = 36633600.

The previous prime is 130670539. The next prime is 130670557. The reversal of 130670540 is 45076031.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1221167 + ... + 1221273.

It is an arithmetic number, because the mean of its divisors is an integer number (1968624).

Almost surely, 2130670540 is an apocalyptic number.

130670540 is a gapful number since it is divisible by the number (10) 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 130670540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188987904).

130670540 is an abundant number, since it is smaller than the sum of its proper divisors (247305268).

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

130670540 is a wasteful number, since it uses less digits than its factorization.

130670540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130670540 is about 11431.1215547732. The cubic root of 130670540 is about 507.4491880502.

The spelling of 130670540 in words is "one hundred thirty million, six hundred seventy thousand, five hundred forty".