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168407130 = 2355613571
BaseRepresentation
bin10100000100110…
…11000001011010
3102201212222011010
422002123001122
5321103012010
624413314350
74113302613
oct1202330132
9381788133
10168407130
1187074851
12484959b6
1328b752b8
141851ac0a
15ebb8620
hexa09b05a

168407130 has 16 divisors (see below), whose sum is σ = 404177184. Its totient is φ = 44908560.

The previous prime is 168407119. The next prime is 168407167. The reversal of 168407130 is 31704861.

It is a happy number.

It is a super-2 number, since 2×1684071302 = 56721922869673800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5613571 = 168407130 / (1 + 6 + 8 + 4 + 0 + 7 + 1 + 3 + 0).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2806756 + ... + 2806815.

It is an arithmetic number, because the mean of its divisors is an integer number (25261074).

Almost surely, 2168407130 is an apocalyptic number.

168407130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168407130 is an abundant number, since it is smaller than the sum of its proper divisors (235770054).

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

168407130 is a wasteful number, since it uses less digits than its factorization.

168407130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613581.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 168407130 is about 12977.1772739683. The cubic root of 168407130 is about 552.2302061763.

The spelling of 168407130 in words is "one hundred sixty-eight million, four hundred seven thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5613571 11227142 16840713 28067855 33681426 56135710 84203565 168407130