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125382720 = 2635131997
BaseRepresentation
bin1110111100100…
…11000001000000
322201221002202110
413132103001000
5224044221340
620235215320
73051510201
oct736230100
9281832673
10125382720
1164858991
1235ba7540
131cc8cc78
141291b5a8
15b01a680
hex7793040

125382720 has 112 divisors (see below), whose sum is σ = 401531328. Its totient is φ = 33146880.

The previous prime is 125382709. The next prime is 125382721. The reversal of 125382720 is 27283521.

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

It is not an unprimeable number, because it can be changed into a prime (125382721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125262 + ... + 126258.

Almost surely, 2125382720 is an apocalyptic number.

125382720 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 125382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200765664).

125382720 is an abundant number, since it is smaller than the sum of its proper divisors (276148608).

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

125382720 is a wasteful number, since it uses less digits than its factorization.

125382720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 125382720 is about 11197.4425651575. The cubic root of 125382720 is about 500.5097734188.

The spelling of 125382720 in words is "one hundred twenty-five million, three hundred eighty-two thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 131 160 192 240 262 320 393 480 524 655 786 960 997 1048 1310 1572 1965 1994 2096 2620 2991 3144 3930 3988 4192 4985 5240 5982 6288 7860 7976 8384 9970 10480 11964 12576 14955 15720 15952 19940 20960 23928 25152 29910 31440 31904 39880 41920 47856 59820 62880 63808 79760 95712 119640 125760 130607 159520 191424 239280 261214 319040 391821 478560 522428 653035 783642 957120 1044856 1306070 1567284 1959105 2089712 2612140 3134568 3918210 4179424 5224280 6269136 7836420 8358848 10448560 12538272 15672840 20897120 25076544 31345680 41794240 62691360 125382720