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125487072 = 25324310133
BaseRepresentation
bin1110111101011…
…00011111100000
322202010101220100
413132230133200
5224111041242
620241342400
73052423344
oct736543740
9282111810
10125487072
116491a327
1236037a00
131ccc8609
1412947624
15b03b54c
hex77ac7e0

125487072 has 72 divisors (see below), whose sum is σ = 365188824. Its totient is φ = 40852224.

The previous prime is 125487007. The next prime is 125487079. The reversal of 125487072 is 270784521.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125487079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7318 + ... + 17450.

It is an arithmetic number, because the mean of its divisors is an integer number (5072067).

Almost surely, 2125487072 is an apocalyptic number.

125487072 is a gapful number since it is divisible by the number (12) 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 125487072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182594412).

125487072 is an abundant number, since it is smaller than the sum of its proper divisors (239701752).

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

125487072 is a wasteful number, since it uses less digits than its factorization.

125487072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10192 (or 10181 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 125487072 is about 11202.1012314655. The cubic root of 125487072 is about 500.6485876377.

The spelling of 125487072 in words is "one hundred twenty-five million, four hundred eighty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 72 86 96 129 144 172 258 288 344 387 516 688 774 1032 1376 1548 2064 3096 4128 6192 10133 12384 20266 30399 40532 60798 81064 91197 121596 162128 182394 243192 324256 364788 435719 486384 729576 871438 972768 1307157 1459152 1742876 2614314 2918304 3485752 3921471 5228628 6971504 7842942 10457256 13943008 15685884 20914512 31371768 41829024 62743536 125487072