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670046388 = 223115076109
BaseRepresentation
bin100111111100000…
…001100010110100
31201200210212211220
4213330001202310
52333012441023
6150253230340
722414205004
oct4774014264
91650725756
10670046388
11314250850
121684923b0
13a8a8256b
1464dbc004
153dc573e3
hex27f018b4

670046388 has 24 divisors (see below), whose sum is σ = 1705572960. Its totient is φ = 203044320.

The previous prime is 670046371. The next prime is 670046413. The reversal of 670046388 is 883640076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2537923 + ... + 2538186.

It is an arithmetic number, because the mean of its divisors is an integer number (71065540).

Almost surely, 2670046388 is an apocalyptic number.

It is an amenable number.

670046388 is an abundant number, since it is smaller than the sum of its proper divisors (1035526572).

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

670046388 is a wasteful number, since it uses less digits than its factorization.

670046388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076127 (or 5076125 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 670046388 is about 25885.2542579748. The cubic root of 670046388 is about 875.0542063833.

The spelling of 670046388 in words is "six hundred seventy million, forty-six thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 5076109 10152218 15228327 20304436 30456654 55837199 60913308 111674398 167511597 223348796 335023194 670046388