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161283039 = 3192829527
BaseRepresentation
bin10011001110011…
…11101111011111
3102020111000201220
421213033233133
5312242024124
624000504423
73665611641
oct1147175737
9366430656
10161283039
1183049375
124601b113
132754c768
14175c4891
15e25c879
hex99cfbdf

161283039 has 8 divisors (see below), whose sum is σ = 226362240. Its totient is φ = 101862936.

The previous prime is 161283019. The next prime is 161283079. The reversal of 161283039 is 930382161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161283039 - 27 = 161282911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161283019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414707 + ... + 1414820.

It is an arithmetic number, because the mean of its divisors is an integer number (28295280).

Almost surely, 2161283039 is an apocalyptic number.

161283039 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

161283039 is a deficient number, since it is larger than the sum of its proper divisors (65079201).

161283039 is a wasteful number, since it uses less digits than its factorization.

161283039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829549.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 161283039 is about 12699.7259419249. The cubic root of 161283039 is about 544.3307881761.

The spelling of 161283039 in words is "one hundred sixty-one million, two hundred eighty-three thousand, thirty-nine".

Divisors: 1 3 19 57 2829527 8488581 53761013 161283039