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1901368090 = 25450742187
BaseRepresentation
bin111000101010100…
…1001001100011010
311220111202111200101
41301111021030122
512343222234330
6512400530014
765055235126
oct16125111432
94814674611
101901368090
118962aaa96
1245092090a
13243bc249b
14140742586
15b1dcd4ca
hex7154931a

1901368090 has 16 divisors (see below), whose sum is σ = 3423303072. Its totient is φ = 760360464.

The previous prime is 1901368081. The next prime is 1901368141. The reversal of 1901368090 is 908631091.

It is a super-2 number, since 2×19013680902 = 7230401227340496200, which contains 22 as substring.

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, 23977 + ... + 66163.

It is an arithmetic number, because the mean of its divisors is an integer number (213956442).

Almost surely, 21901368090 is an apocalyptic number.

1901368090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1901368090 is a deficient number, since it is larger than the sum of its proper divisors (1521934982).

1901368090 is a wasteful number, since it uses less digits than its factorization.

1901368090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46701.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1901368090 is about 43604.6796800527. The cubic root of 1901368090 is about 1238.8595328235.

The spelling of 1901368090 in words is "one billion, nine hundred one million, three hundred sixty-eight thousand, ninety".

Divisors: 1 2 5 10 4507 9014 22535 42187 45070 84374 210935 421870 190136809 380273618 950684045 1901368090