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401902054 = 2563356929
BaseRepresentation
bin10111111101001…
…000100111100110
31001000020201222021
4113331020213212
51310341331204
6103514053354
712650053051
oct2775104746
91030221867
10401902054
11196954a64
12b271a25a
1365359288
143b53ba98
152543c154
hex17f489e6

401902054 has 8 divisors (see below), whose sum is σ = 603925560. Its totient is φ = 200593536.

The previous prime is 401902027. The next prime is 401902063. The reversal of 401902054 is 450209104.

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

It is a super-2 number, since 2×4019020542 = 323050522018837832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177339 + ... + 179590.

It is an arithmetic number, because the mean of its divisors is an integer number (75490695).

Almost surely, 2401902054 is an apocalyptic number.

401902054 is a deficient number, since it is larger than the sum of its proper divisors (202023506).

401902054 is a wasteful number, since it uses less digits than its factorization.

401902054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357494.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 401902054 is about 20047.4949557295. The cubic root of 401902054 is about 737.9723246159.

The spelling of 401902054 in words is "four hundred one million, nine hundred two thousand, fifty-four".

Divisors: 1 2 563 1126 356929 713858 200951027 401902054