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34720007 = 74960001
BaseRepresentation
bin1000010001110…
…0100100000111
32102022221220012
42010130210013
532342020012
63240100435
7601054340
oct204344407
972287805
1034720007
1118664723
12b76471b
1372684aa
14487b0c7
1530ac622
hex211c907

34720007 has 4 divisors (see below), whose sum is σ = 39680016. Its totient is φ = 29760000.

The previous prime is 34719991. The next prime is 34720009. The reversal of 34720007 is 70002743.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34720007 - 24 = 34719991 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 (34720009) 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, 2479994 + ... + 2480007.

It is an arithmetic number, because the mean of its divisors is an integer number (9920004).

Almost surely, 234720007 is an apocalyptic number.

34720007 is a deficient number, since it is larger than the sum of its proper divisors (4960009).

34720007 is an equidigital number, since it uses as much as digits as its factorization.

34720007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960008.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 34720007 is about 5892.3685390512. The cubic root of 34720007 is about 326.2320321084.

The spelling of 34720007 in words is "thirty-four million, seven hundred twenty thousand, seven".

Divisors: 1 7 4960001 34720007