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104156280 = 23345173161
BaseRepresentation
bin1100011010101…
…00110001111000
321020222200120000
412031110301320
5203131000110
614200233000
72403212424
oct615246170
9236880500
10104156280
1153880178
122aa6b760
131876a547
14db93b84
1592261c0
hex6354c78

104156280 has 320 divisors, whose sum is σ = 388903680. Its totient is φ = 24883200.

The previous prime is 104156279. The next prime is 104156287. The reversal of 104156280 is 82651401.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104156287) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 1707450 + ... + 1707510.

It is an arithmetic number, because the mean of its divisors is an integer number (1215324).

Almost surely, 2104156280 is an apocalyptic number.

104156280 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 104156280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194451840).

104156280 is an abundant number, since it is smaller than the sum of its proper divisors (284747400).

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

104156280 is a wasteful number, since it uses less digits than its factorization.

104156280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 104156280 is about 10205.6984082423. The cubic root of 104156280 is about 470.5023751566.

The spelling of 104156280 in words is "one hundred four million, one hundred fifty-six thousand, two hundred eighty".