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1900074290 = 251926893719
BaseRepresentation
bin111000101000000…
…1101010100110010
311220102022202220212
41301100031110302
512342404334130
6512313104122
765041236122
oct16120152462
94812282825
101900074290
118955a6a34
124503b8042
1324385b61a
141404c6c82
15b1c24e95
hex7140d532

1900074290 has 32 divisors (see below), whose sum is σ = 3602448000. Its totient is φ = 719566848.

The previous prime is 1900074277. The next prime is 1900074313. The reversal of 1900074290 is 924700091.

It is a super-2 number, since 2×19000742902 = 7220564615038008200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509051 + ... + 512769.

It is an arithmetic number, because the mean of its divisors is an integer number (112576500).

Almost surely, 21900074290 is an apocalyptic number.

1900074290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1900074290 is a deficient number, since it is larger than the sum of its proper divisors (1702373710).

1900074290 is a wasteful number, since it uses less digits than its factorization.

1900074290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1900074290 is about 43589.8415918205. The cubic root of 1900074290 is about 1238.5784720155.

The spelling of 1900074290 in words is "one billion, nine hundred million, seventy-four thousand, two hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 2689 3719 5378 7438 13445 18595 26890 37190 51091 70661 102182 141322 255455 353305 510910 706610 10000391 20000782 50001955 100003910 190007429 380014858 950037145 1900074290