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151994 = 275997
BaseRepresentation
bin100101000110111010
321201111102
4211012322
514330434
63131402
71202063
oct450672
9251442
10151994
11a4217
1273b62
135424b
143d56a
153007e
hex251ba

151994 has 4 divisors (see below), whose sum is σ = 227994. Its totient is φ = 75996.

The previous prime is 151969. The next prime is 152003. The reversal of 151994 is 499151.

151994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133225 + 18769 = 365^2 + 137^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37997 + ... + 38000.

2151994 is an apocalyptic number.

151994 is a deficient number, since it is larger than the sum of its proper divisors (76000).

151994 is an equidigital number, since it uses as much as digits as its factorization.

151994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75999.

The product of its digits is 1620, while the sum is 29.

The square root of 151994 is about 389.8640788788. The cubic root of 151994 is about 53.3673307542.

The spelling of 151994 in words is "one hundred fifty-one thousand, nine hundred ninety-four".

Divisors: 1 2 75997 151994