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139876 = 22112172
BaseRepresentation
bin100010001001100100
321002212121
4202021210
513434001
62555324
71121542
oct421144
9232777
10139876
1196100
1268b44
134b889
1438d92
152b6a1
hex22264

139876 has 27 divisors (see below), whose sum is σ = 285817. Its totient is φ = 59840.

The previous prime is 139871. The next prime is 139883. The reversal of 139876 is 678931.

139876 divided by its sum of digits (34) gives a palindrome (4114).

It can be divided in two parts, 13 and 9876, that added together give a palindrome (9889).

139876 = T373 + T374.

The square root of 139876 is 374.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 108900 + 30976 = 330^2 + 176^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (139871) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8220 + ... + 8236.

2139876 is an apocalyptic number.

139876 is the 374-th square number.

It is an amenable number.

139876 is an abundant number, since it is smaller than the sum of its proper divisors (145941).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139876 is a wasteful number, since it uses less digits than its factorization.

139876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 30 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The cubic root of 139876 is about 51.9096062695.

The spelling of 139876 in words is "one hundred thirty-nine thousand, eight hundred seventy-six".

Divisors: 1 2 4 11 17 22 34 44 68 121 187 242 289 374 484 578 748 1156 2057 3179 4114 6358 8228 12716 34969 69938 139876