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168406964 = 221117225143
BaseRepresentation
bin10100000100110…
…10111110110100
3102201212221220222
422002122332310
5321103010324
624413313512
74113302255
oct1202327664
9381787828
10168406964
1187074710
1248495898
1328b751bb
141851ab2c
15ebb855e
hexa09afb4

168406964 has 24 divisors (see below), whose sum is σ = 340417728. Its totient is φ = 72045440.

The previous prime is 168406949. The next prime is 168406991. The reversal of 168406964 is 469604861.

168406964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 111824 + ... + 113319.

It is an arithmetic number, because the mean of its divisors is an integer number (14184072).

Almost surely, 2168406964 is an apocalyptic number.

It is an amenable number.

168406964 is an abundant number, since it is smaller than the sum of its proper divisors (172010764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168406964 is a wasteful number, since it uses less digits than its factorization.

168406964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225175 (or 225173 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 168406964 is about 12977.1708781229. The cubic root of 168406964 is about 552.2300247307.

The spelling of 168406964 in words is "one hundred sixty-eight million, four hundred six thousand, nine hundred sixty-four".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 225143 450286 900572 2476573 3827431 4953146 7654862 9906292 15309724 42101741 84203482 168406964