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125344830 = 23513321397
BaseRepresentation
bin1110111100010…
…01110000111110
322201212011210010
413132021300332
5224042013310
620234324050
73051261552
oct736116076
9281764703
10125344830
1164832476
1235b89626
131cc78950
141290b862
15b00e320
hex7789c3e

125344830 has 32 divisors (see below), whose sum is σ = 323969184. Its totient is φ = 30854016.

The previous prime is 125344801. The next prime is 125344837. The reversal of 125344830 is 38443521.

It is a super-2 number, since 2×1253448302 = 31422652815457800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125344837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160309 + ... + 161088.

It is an arithmetic number, because the mean of its divisors is an integer number (10124037).

Almost surely, 2125344830 is an apocalyptic number.

125344830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125344830 is an abundant number, since it is smaller than the sum of its proper divisors (198624354).

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

125344830 is a wasteful number, since it uses less digits than its factorization.

125344830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321420.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 125344830 is about 11195.7505331264. The cubic root of 125344830 is about 500.4593511971.

The spelling of 125344830 in words is "one hundred twenty-five million, three hundred forty-four thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 321397 642794 964191 1606985 1928382 3213970 4178161 4820955 8356322 9641910 12534483 20890805 25068966 41781610 62672415 125344830