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30525415 = 59762939
BaseRepresentation
bin111010001110…
…0011111100111
32010102211222221
41310130133213
530303303130
63010133211
7520314244
oct164343747
963384887
1030525415
111625a218
12a281207
13642a19b
1440a85cb
152a2e87a
hex1d1c7e7

30525415 has 8 divisors (see below), whose sum is σ = 37008720. Its totient is φ = 24168192.

The previous prime is 30525413. The next prime is 30525431. The reversal of 30525415 is 51452503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30525415 - 21 = 30525413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30525415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30525413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30985 + ... + 31954.

It is an arithmetic number, because the mean of its divisors is an integer number (4626090).

Almost surely, 230525415 is an apocalyptic number.

30525415 is a deficient number, since it is larger than the sum of its proper divisors (6483305).

30525415 is an equidigital number, since it uses as much as digits as its factorization.

30525415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63041.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 30525415 is about 5524.9809954424. The cubic root of 30525415 is about 312.5267475772.

Adding to 30525415 its reverse (51452503), we get a palindrome (81977918).

The spelling of 30525415 in words is "thirty million, five hundred twenty-five thousand, four hundred fifteen".

Divisors: 1 5 97 485 62939 314695 6105083 30525415