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1900950054 = 232831119523
BaseRepresentation
bin111000101001110…
…0011001000100110
311220110222021020120
41301103203020212
512343120400204
6512343542410
765051544303
oct16123431046
94813867216
101900950054
11896044a03
1245075aa06
13243aa7123
141406740aa
15b1d496d9
hex714e3226

1900950054 has 16 divisors (see below), whose sum is σ = 3815337792. Its totient is φ = 631410408.

The previous prime is 1900950049. The next prime is 1900950083. The reversal of 1900950054 is 4500590091.

It is a super-2 number, since 2×19009500542 = 7227222215605205832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900949997 and 1900950024.

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, 558064 + ... + 561459.

It is an arithmetic number, because the mean of its divisors is an integer number (238458612).

Almost surely, 21900950054 is an apocalyptic number.

1900950054 is an abundant number, since it is smaller than the sum of its proper divisors (1914387738).

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

1900950054 is a wasteful number, since it uses less digits than its factorization.

1900950054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119811.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1900950054 is about 43599.8859402178. The cubic root of 1900950054 is about 1238.7687340200.

The spelling of 1900950054 in words is "one billion, nine hundred million, nine hundred fifty thousand, fifty-four".

Divisors: 1 2 3 6 283 566 849 1698 1119523 2239046 3358569 6717138 316825009 633650018 950475027 1900950054