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131434142 = 27113251331
BaseRepresentation
bin1111101010110…
…00011010011110
3100011022112202012
413311120122132
5232121343032
621013031222
73154112630
oct765303236
9304275665
10131434142
1168211464
1238025512
13212cb4a8
1413654a50
15b8136b2
hex7d5869e

131434142 has 32 divisors (see below), whose sum is σ = 228904704. Its totient is φ = 55440000.

The previous prime is 131434139. The next prime is 131434159. The reversal of 131434142 is 241434131.

131434142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396917 + ... + 397247.

It is an arithmetic number, because the mean of its divisors is an integer number (7153272).

Almost surely, 2131434142 is an apocalyptic number.

131434142 is a deficient number, since it is larger than the sum of its proper divisors (97470562).

131434142 is a wasteful number, since it uses less digits than its factorization.

131434142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its digits is 1152, while the sum is 23.

The square root of 131434142 is about 11464.4730362978. The cubic root of 131434142 is about 508.4357324364.

Adding to 131434142 its reverse (241434131), we get a palindrome (372868273).

The spelling of 131434142 in words is "one hundred thirty-one million, four hundred thirty-four thousand, one hundred forty-two".

Divisors: 1 2 7 14 113 226 251 331 502 662 791 1582 1757 2317 3514 4634 28363 37403 56726 74806 83081 166162 198541 261821 397082 523642 581567 1163134 9388153 18776306 65717071 131434142