Search a number
-
+
102099977 = 7217196451
BaseRepresentation
bin1100001010111…
…10110000001001
321010010012211122
412011132300021
5202114144402
614044205025
72346556400
oct605366011
9233105748
10102099977
11526a6251
122a239775
13181ca5b5
14d7ba637
158e6bca2
hex615ec09

102099977 has 24 divisors (see below), whose sum is σ = 132395040. Its totient is φ = 78019200.

The previous prime is 102099961. The next prime is 102099997. The reversal of 102099977 is 779990201.

It is not a de Polignac number, because 102099977 - 24 = 102099961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102099937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12602 + ... + 19052.

It is an arithmetic number, because the mean of its divisors is an integer number (5516460).

Almost surely, 2102099977 is an apocalyptic number.

102099977 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

102099977 is a deficient number, since it is larger than the sum of its proper divisors (30295063).

102099977 is a wasteful number, since it uses less digits than its factorization.

102099977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6501 (or 6494 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 102099977 is about 10104.4533251433. The cubic root of 102099977 is about 467.3854783493.

The spelling of 102099977 in words is "one hundred two million, ninety-nine thousand, nine hundred seventy-seven".

Divisors: 1 7 17 19 49 119 133 323 833 931 2261 6451 15827 45157 109667 122569 316099 767669 857983 2083673 5373683 6005881 14585711 102099977