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163070372 = 22131311203
BaseRepresentation
bin10011011100001…
…00000110100100
3102100211211111102
421232010012210
5313221222442
624103055232
74020034553
oct1156040644
9370754442
10163070372
118405a203
1246741518
1327a2715a
141792bd9a
15e4b2232
hex9b841a4

163070372 has 12 divisors (see below), whose sum is σ = 287552496. Its totient is φ = 80912520.

The previous prime is 163070371. The next prime is 163070377. The reversal of 163070372 is 273070361.

It is not an unprimeable number, because it can be changed into a prime (163070371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155078 + ... + 156125.

It is an arithmetic number, because the mean of its divisors is an integer number (23962708).

Almost surely, 2163070372 is an apocalyptic number.

It is an amenable number.

163070372 is a deficient number, since it is larger than the sum of its proper divisors (124482124).

163070372 is a wasteful number, since it uses less digits than its factorization.

163070372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311338 (or 311336 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 163070372 is about 12769.9010176273. The cubic root of 163070372 is about 546.3341574662.

The spelling of 163070372 in words is "one hundred sixty-three million, seventy thousand, three hundred seventy-two".

Divisors: 1 2 4 131 262 524 311203 622406 1244812 40767593 81535186 163070372