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513674680 = 23529442823
BaseRepresentation
bin11110100111100…
…000110110111000
31022210120101012011
4132213200312320
52023000042210
6122545455304
715505106551
oct3647406670
91283511164
10513674680
11243a57432
12124041534
138256241c
144c315328
1530169d8a
hex1e9e0db8

513674680 has 32 divisors (see below), whose sum is σ = 1195624800. Its totient is φ = 198384256.

The previous prime is 513674573. The next prime is 513674683. The reversal of 513674680 is 86476315.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513674683) 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, 220252 + ... + 222571.

It is an arithmetic number, because the mean of its divisors is an integer number (37363275).

Almost surely, 2513674680 is an apocalyptic number.

It is an amenable number.

513674680 is an abundant number, since it is smaller than the sum of its proper divisors (681950120).

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

513674680 is a wasteful number, since it uses less digits than its factorization.

513674680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442863 (or 442859 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 513674680 is about 22664.3923368795. The cubic root of 513674680 is about 800.8712799113.

The spelling of 513674680 in words is "five hundred thirteen million, six hundred seventy-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 442823 885646 1771292 2214115 3542584 4428230 8856460 12841867 17712920 25683734 51367468 64209335 102734936 128418670 256837340 513674680