Search a number
-
+
103102031 = 2379179317
BaseRepresentation
bin1100010010100…
…11011001001111
321012000010101202
412021103121033
5202343231111
614121500115
72361232004
oct611233117
9235003352
10103102031
115322009a
122a64163b
131848b726
14d99b8ab
1590b8b3b
hex625364f

103102031 has 16 divisors (see below), whose sum is σ = 109900800. Its totient is φ = 96521568.

The previous prime is 103101941. The next prime is 103102033. The reversal of 103102031 is 130201301.

It is a de Polignac number, because none of the positive numbers 2k-103102031 is a prime.

It is a super-2 number, since 2×1031020312 = 21260057592649922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103102033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325085 + ... + 325401.

It is an arithmetic number, because the mean of its divisors is an integer number (6868800).

Almost surely, 2103102031 is an apocalyptic number.

103102031 is a deficient number, since it is larger than the sum of its proper divisors (6798769).

103102031 is a wasteful number, since it uses less digits than its factorization.

103102031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 103102031 is about 10153.9170274333. The cubic root of 103102031 is about 468.9095453112.

Adding to 103102031 its reverse (130201301), we get a palindrome (233303332).

The spelling of 103102031 in words is "one hundred three million, one hundred two thousand, thirty-one".

Divisors: 1 23 79 179 317 1817 4117 7291 14141 25043 56743 325243 575989 1305089 4482697 103102031