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161450316 = 22324484731
BaseRepresentation
bin10011001111110…
…00100101001100
3102020210112012100
421213320211030
5312312402231
624004235100
74000206426
oct1147704514
9366715170
10161450316
1183153015
124609ba90
13275aa941
1417629816
15e2921e6
hex99f894c

161450316 has 18 divisors (see below), whose sum is σ = 408110612. Its totient is φ = 53816760.

The previous prime is 161450293. The next prime is 161450323. The reversal of 161450316 is 613054161.

161450316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 161450316.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2242330 + ... + 2242401.

Almost surely, 2161450316 is an apocalyptic number.

It is an amenable number.

161450316 is an abundant number, since it is smaller than the sum of its proper divisors (246660296).

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

161450316 is a wasteful number, since it uses less digits than its factorization.

161450316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484741 (or 4484736 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 161450316 is about 12706.3100859376. The cubic root of 161450316 is about 544.5189099621.

The spelling of 161450316 in words is "one hundred sixty-one million, four hundred fifty thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 4484731 8969462 13454193 17938924 26908386 40362579 53816772 80725158 161450316