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402002054 = 21861108007
BaseRepresentation
bin10111111101100…
…001000010000110
31001000102211010222
4113331201002012
51310403031204
6103520144342
712650650436
oct2775410206
91030384128
10402002054
11196a13103
12b27680b2
136539294c
143b5662c6
152545babe
hex17f61086

402002054 has 8 divisors (see below), whose sum is σ = 603332688. Its totient is φ = 200891160.

The previous prime is 402002033. The next prime is 402002087. The reversal of 402002054 is 450200204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50282 + ... + 57725.

It is an arithmetic number, because the mean of its divisors is an integer number (75416586).

Almost surely, 2402002054 is an apocalyptic number.

402002054 is a deficient number, since it is larger than the sum of its proper divisors (201330634).

402002054 is a wasteful number, since it uses less digits than its factorization.

402002054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109870.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 402002054 is about 20049.9888778024. The cubic root of 402002054 is about 738.0335261880.

Adding to 402002054 its reverse (450200204), we get a palindrome (852202258).

The spelling of 402002054 in words is "four hundred two million, two thousand, fifty-four".

Divisors: 1 2 1861 3722 108007 216014 201001027 402002054