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164515530 = 2355483851
BaseRepresentation
bin10011100111001…
…00111011001010
3102110120020212210
421303210323022
5314103444110
624154045550
74035234054
oct1163447312
9373506783
10164515530
1184956a53
12471198b6
1328111b8a
1417bc68d4
15e69a520
hex9ce4eca

164515530 has 16 divisors (see below), whose sum is σ = 394837344. Its totient is φ = 43870800.

The previous prime is 164515529. The next prime is 164515531. The reversal of 164515530 is 35515461.

164515530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164515529) and next prime (164515531).

It is a super-2 number, since 2×1645155302 = 54130719222361800, 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: 5483851 = 164515530 / (1 + 6 + 4 + 5 + 1 + 5 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (164515531) 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, 2741896 + ... + 2741955.

It is an arithmetic number, because the mean of its divisors is an integer number (24677334).

Almost surely, 2164515530 is an apocalyptic number.

164515530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164515530 is an abundant number, since it is smaller than the sum of its proper divisors (230321814).

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

164515530 is a wasteful number, since it uses less digits than its factorization.

164515530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483861.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 164515530 is about 12826.3607465251. The cubic root of 164515530 is about 547.9433160152.

The spelling of 164515530 in words is "one hundred sixty-four million, five hundred fifteen thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5483851 10967702 16451553 27419255 32903106 54838510 82257765 164515530