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670163240 = 23537452813
BaseRepresentation
bin100111111100011…
…110000100101000
31201201000211010202
4213330132010220
52333030210430
6150255531332
722415202455
oct4774360450
91651024122
10670163240
1131432061a
12168529b48
13a8ac37c6
146500c82c
153dc7bd45
hex27f1e128

670163240 has 32 divisors (see below), whose sum is σ = 1548623880. Its totient is φ = 260819712.

The previous prime is 670163237. The next prime is 670163243. The reversal of 670163240 is 42361076.

670163240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (670163237) and next prime (670163243).

It can be written as a sum of positive squares in 4 ways, for example, as 461476324 + 208686916 = 21482^2 + 14446^2 .

It is not an unprimeable number, because it can be changed into a prime (670163243) 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, 224927 + ... + 227886.

Almost surely, 2670163240 is an apocalyptic number.

It is an amenable number.

670163240 is an abundant number, since it is smaller than the sum of its proper divisors (878460640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670163240 is a wasteful number, since it uses less digits than its factorization.

670163240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452861 (or 452857 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 670163240 is about 25887.5112747440. The cubic root of 670163240 is about 875.1050714640.

The spelling of 670163240 in words is "six hundred seventy million, one hundred sixty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 37 40 74 148 185 296 370 740 1480 452813 905626 1811252 2264065 3622504 4528130 9056260 16754081 18112520 33508162 67016324 83770405 134032648 167540810 335081620 670163240