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1900133 = 19971031
BaseRepresentation
bin111001111111001100101
310120112111022
413033321211
5441301013
6104420525
722102514
oct7177145
93515438
101900133
111088664
12777745
13516b51
1437667b
15278008
hex1cfe65

1900133 has 8 divisors (see below), whose sum is σ = 2022720. Its totient is φ = 1779840.

The previous prime is 1900121. The next prime is 1900147. The reversal of 1900133 is 3310091.

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

It is a cyclic number.

It is not a de Polignac number, because 1900133 - 210 = 1899109 is a prime.

It is a super-2 number, since 2×19001332 = 7221010835378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (252840).

21900133 is an apocalyptic number.

It is an amenable number.

1900133 is a deficient number, since it is larger than the sum of its proper divisors (122587).

1900133 is a wasteful number, since it uses less digits than its factorization.

1900133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1900133 is about 1378.4531185354. The cubic root of 1900133 is about 123.8591228744.

The spelling of 1900133 in words is "one million, nine hundred thousand, one hundred thirty-three".

Divisors: 1 19 97 1031 1843 19589 100007 1900133