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164148780 = 22355235231
BaseRepresentation
bin10011100100010…
…11011000101100
3102102212121210110
421302023120230
5314010230110
624142140020
74032145605
oct1162133054
9372777713
10164148780
1184726454
1246b81610
1328013c73
1417b2cdac
15e626a20
hex9c8b62c

164148780 has 48 divisors (see below), whose sum is σ = 460583424. Its totient is φ = 43680960.

The previous prime is 164148767. The next prime is 164148793. The reversal of 164148780 is 87841461.

It is an interprime number because it is at equal distance from previous prime (164148767) and next prime (164148793).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28765 + ... + 33995.

It is an arithmetic number, because the mean of its divisors is an integer number (9595488).

Almost surely, 2164148780 is an apocalyptic number.

164148780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164148780 is an abundant number, since it is smaller than the sum of its proper divisors (296434644).

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

164148780 is a wasteful number, since it uses less digits than its factorization.

164148780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766 (or 5764 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 164148780 is about 12812.0560410888. The cubic root of 164148780 is about 547.5358413600.

The spelling of 164148780 in words is "one hundred sixty-four million, one hundred forty-eight thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 523 1046 1569 2092 2615 3138 5230 5231 6276 7845 10460 10462 15690 15693 20924 26155 31380 31386 52310 62772 78465 104620 156930 313860 2735813 5471626 8207439 10943252 13679065 16414878 27358130 32829756 41037195 54716260 82074390 164148780