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23283037 = 191279649
BaseRepresentation
bin101100011010…
…0010101011101
31121210220022201
41120310111131
521430024122
62151011501
7401621401
oct130642535
947726281
1023283037
1112162988
127969b91
134a9285b
143141101
15209da27
hex163455d

23283037 has 8 divisors (see below), whose sum is σ = 24704000. Its totient is φ = 21881664.

The previous prime is 23282981. The next prime is 23283041. The reversal of 23283037 is 73038232.

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

It is a 3-Lehmer number, since φ(23283037) divides (23283037-1)3.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23283037 is a prime.

It is a deceptive number, since it divides R23283036.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23282996 and 23283014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23283097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412 + ... + 7237.

It is an arithmetic number, because the mean of its divisors is an integer number (3088000).

It is a Poulet number, since it divides 223283036-1.

Almost surely, 223283037 is an apocalyptic number.

23283037 is the 2413-rd decagonal number.

It is an amenable number.

23283037 is a deficient number, since it is larger than the sum of its proper divisors (1420963).

23283037 is a wasteful number, since it uses less digits than its factorization.

23283037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9795.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 23283037 is about 4825.2499417129. The cubic root of 23283037 is about 285.5484953756.

The spelling of 23283037 in words is "twenty-three million, two hundred eighty-three thousand, thirty-seven".

Divisors: 1 19 127 2413 9649 183331 1225423 23283037