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30604207 = 73941413
BaseRepresentation
bin111010010111…
…1101110101111
32010120212002011
41310233232233
530313313312
63011542051
7521063044
oct164575657
963525064
1030604207
1116303437
12a2ba927
136456cca
1440c91cb
152a47da7
hex1d2fbaf

30604207 has 4 divisors (see below), whose sum is σ = 30646360. Its totient is φ = 30562056.

The previous prime is 30604187. The next prime is 30604213. The reversal of 30604207 is 70240603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70240603 = 543712919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30604207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30604907) 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, 19968 + ... + 21445.

It is an arithmetic number, because the mean of its divisors is an integer number (7661590).

Almost surely, 230604207 is an apocalyptic number.

30604207 is a deficient number, since it is larger than the sum of its proper divisors (42153).

30604207 is an equidigital number, since it uses as much as digits as its factorization.

30604207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42152.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30604207 is about 5532.1069223217. The cubic root of 30604207 is about 312.7954138767.

The spelling of 30604207 in words is "thirty million, six hundred four thousand, two hundred seven".

Divisors: 1 739 41413 30604207