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630752007 = 3269781601
BaseRepresentation
bin100101100110001…
…000001100000111
31121221212112002110
4211212020030013
52242433031012
6142331112103
721426206064
oct4546101407
91557775073
10630752007
112a4052356
121572a2633
13a08a4c52
145daadc6b
153a59473c
hex25988307

630752007 has 8 divisors (see below), whose sum is σ = 844130160. Its totient is φ = 418937600.

The previous prime is 630751999. The next prime is 630752011. The reversal of 630752007 is 700257036.

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 630752007 - 23 = 630751999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630752027) 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, 389994 + ... + 391607.

It is an arithmetic number, because the mean of its divisors is an integer number (105516270).

Almost surely, 2630752007 is an apocalyptic number.

630752007 is a deficient number, since it is larger than the sum of its proper divisors (213378153).

630752007 is a wasteful number, since it uses less digits than its factorization.

630752007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781873.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 630752007 is about 25114.7766663373. The cubic root of 630752007 is about 857.6028462239.

The spelling of 630752007 in words is "six hundred thirty million, seven hundred fifty-two thousand, seven".

Divisors: 1 3 269 807 781601 2344803 210250669 630752007