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516127420 = 22525806371
BaseRepresentation
bin11110110000110…
…111101010111100
31022222011222201101
4132300313222330
52024112034140
6123114222444
715535003444
oct3660675274
91288158641
10516127420
11245382196
12124a24a24
1382c10953
144c793124
15304a199a
hex1ec37abc

516127420 has 12 divisors (see below), whose sum is σ = 1083867624. Its totient is φ = 206450960.

The previous prime is 516127399. The next prime is 516127427. The reversal of 516127420 is 24721615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516127427) 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, 12903166 + ... + 12903205.

It is an arithmetic number, because the mean of its divisors is an integer number (90322302).

Almost surely, 2516127420 is an apocalyptic number.

It is an amenable number.

516127420 is an abundant number, since it is smaller than the sum of its proper divisors (567740204).

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

516127420 is a wasteful number, since it uses less digits than its factorization.

516127420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25806380 (or 25806378 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 516127420 is about 22718.4378864393. The cubic root of 516127420 is about 802.1439471473.

The spelling of 516127420 in words is "five hundred sixteen million, one hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 25806371 51612742 103225484 129031855 258063710 516127420