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542102478 = 23557162209
BaseRepresentation
bin100000010011111…
…101001111001110
31101210001122210120
4200103331033032
52102234234403
6125443045410
716301536461
oct4023751716
91353048716
10542102478
11259003685
12131670866
13884068c8
1451dd52d8
15328d2e53
hex204fd3ce

542102478 has 16 divisors (see below), whose sum is σ = 1086158160. Its totient is φ = 180375296.

The previous prime is 542102461. The next prime is 542102507. The reversal of 542102478 is 874201245.

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, 77763 + ... + 84446.

It is an arithmetic number, because the mean of its divisors is an integer number (67884885).

Almost surely, 2542102478 is an apocalyptic number.

542102478 is an abundant number, since it is smaller than the sum of its proper divisors (544055682).

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

542102478 is a wasteful number, since it uses less digits than its factorization.

542102478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162771.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 542102478 is about 23283.0942531271. The cubic root of 542102478 is about 815.3807687941.

The spelling of 542102478 in words is "five hundred forty-two million, one hundred two thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 557 1114 1671 3342 162209 324418 486627 973254 90350413 180700826 271051239 542102478