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120668894 = 260334447
BaseRepresentation
bin1110011000101…
…00001011011110
322102001121121022
413030110023132
5221342401034
615550204142
72663445233
oct714241336
9272047538
10120668894
1162129365
12344b3652
131bccc518
141205178a
15a8d8b2e
hex73142de

120668894 has 4 divisors (see below), whose sum is σ = 181003344. Its totient is φ = 60334446.

The previous prime is 120668893. The next prime is 120668897. The reversal of 120668894 is 498866021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498866021 = 2321689827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120668893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30167222 + ... + 30167225.

It is an arithmetic number, because the mean of its divisors is an integer number (45250836).

Almost surely, 2120668894 is an apocalyptic number.

120668894 is a deficient number, since it is larger than the sum of its proper divisors (60334450).

120668894 is an equidigital number, since it uses as much as digits as its factorization.

120668894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60334449.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 120668894 is about 10984.9394172203. The cubic root of 120668894 is about 494.1571808833.

The spelling of 120668894 in words is "one hundred twenty million, six hundred sixty-eight thousand, eight hundred ninety-four".

Divisors: 1 2 60334447 120668894