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30625004 = 2216194729
BaseRepresentation
bin111010011010…
…0110011101100
32010121220121102
41310310303230
530320000004
63012222232
7521210504
oct164646354
963556542
1030625004
1116318023
12a30a978
136463607
1440d2a04
152a4e11e
hex1d34cec

30625004 has 12 divisors (see below), whose sum is σ = 53638200. Its totient is φ = 15299808.

The previous prime is 30624959. The next prime is 30625009. The reversal of 30625004 is 40052603.

It is not an unprimeable number, because it can be changed into a prime (30625009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4112 + ... + 8840.

It is an arithmetic number, because the mean of its divisors is an integer number (4469850).

Almost surely, 230625004 is an apocalyptic number.

It is an amenable number.

30625004 is a deficient number, since it is larger than the sum of its proper divisors (23013196).

30625004 is a wasteful number, since it uses less digits than its factorization.

30625004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352 (or 6350 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30625004 is about 5533.9862666978. The cubic root of 30625004 is about 312.8662509052.

Adding to 30625004 its reverse (40052603), we get a palindrome (70677607).

It can be divided in two parts, 3062500 and 4, that multiplied together give a square (12250000 = 35002).

The spelling of 30625004 in words is "thirty million, six hundred twenty-five thousand, four".

Divisors: 1 2 4 1619 3238 4729 6476 9458 18916 7656251 15312502 30625004