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125430030 = 232511316167
BaseRepresentation
bin1110111100111…
…10100100001110
322202000111122200
413132132210032
5224102230110
620240222330
73052065135
oct736364416
9282014580
10125430030
1164890490
123600a9a6
131cca866b
141293091c
15b0296c0
hex779e90e

125430030 has 192 divisors, whose sum is σ = 378832896. Its totient is φ = 28512000.

The previous prime is 125430013. The next prime is 125430031. The reversal of 125430030 is 30034521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 125429985 and 125430012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125430031) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1872057 + ... + 1872123.

It is an arithmetic number, because the mean of its divisors is an integer number (1973088).

Almost surely, 2125430030 is an apocalyptic number.

125430030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125430030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189416448).

125430030 is an abundant number, since it is smaller than the sum of its proper divisors (253402866).

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

125430030 is a wasteful number, since it uses less digits than its factorization.

125430030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 125430030 is about 11199.5549018700. The cubic root of 125430030 is about 500.5727170732.

Adding to 125430030 its reverse (30034521), we get a palindrome (155464551).

The spelling of 125430030 in words is "one hundred twenty-five million, four hundred thirty thousand, thirty".