Search a number
-
+
102733931 = 195407049
BaseRepresentation
bin1100001111110…
…01100001101011
321011022102110102
412013321201223
5202244441211
614105540015
72355136556
oct607714153
9234272412
10102733931
1152a99583
122a4a460b
1318390011
14d90369d
159044a3b
hex61f986b

102733931 has 4 divisors (see below), whose sum is σ = 108141000. Its totient is φ = 97326864.

The previous prime is 102733913. The next prime is 102733933. The reversal of 102733931 is 139337201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139337201 = 149935149.

It is a cyclic number.

It is not a de Polignac number, because 102733931 - 210 = 102732907 is a prime.

It is a super-2 number, since 2×1027339312 = 21108521157425522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102733894 and 102733903.

It is not an unprimeable number, because it can be changed into a prime (102733933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2703506 + ... + 2703543.

It is an arithmetic number, because the mean of its divisors is an integer number (27035250).

Almost surely, 2102733931 is an apocalyptic number.

102733931 is a deficient number, since it is larger than the sum of its proper divisors (5407069).

102733931 is an equidigital number, since it uses as much as digits as its factorization.

102733931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407068.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 102733931 is about 10135.7748100478. The cubic root of 102733931 is about 468.3508384801.

The spelling of 102733931 in words is "one hundred two million, seven hundred thirty-three thousand, nine hundred thirty-one".

Divisors: 1 19 5407049 102733931