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125010400 = 2552307509
BaseRepresentation
bin1110111001110…
…00000111100000
322201020012000211
413130320013200
5224000313100
620223223504
73045366544
oct734700740
9281205024
10125010400
1164624189
1235a47b94
131cb8c668
1412861a24
15ae951ba
hex77381e0

125010400 has 72 divisors (see below), whose sum is σ = 306777240. Its totient is φ = 49743360.

The previous prime is 125010397. The next prime is 125010419. The reversal of 125010400 is 4010521.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 245346 + ... + 245854.

It is an arithmetic number, because the mean of its divisors is an integer number (4260795).

Almost surely, 2125010400 is an apocalyptic number.

125010400 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 125010400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153388620).

125010400 is an abundant number, since it is smaller than the sum of its proper divisors (181766840).

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

125010400 is a wasteful number, since it uses less digits than its factorization.

125010400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 125010400 is about 11180.8049799645. The cubic root of 125010400 is about 500.0138662821.

Adding to 125010400 its reverse (4010521), we get a palindrome (129020921).

The spelling of 125010400 in words is "one hundred twenty-five million, ten thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 307 400 509 614 800 1018 1228 1535 2036 2456 2545 3070 4072 4912 5090 6140 7675 8144 9824 10180 12280 12725 15350 16288 20360 24560 25450 30700 40720 49120 50900 61400 81440 101800 122800 156263 203600 245600 312526 407200 625052 781315 1250104 1562630 2500208 3125260 3906575 5000416 6250520 7813150 12501040 15626300 25002080 31252600 62505200 125010400