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134102420 = 22523401727
BaseRepresentation
bin1111111111000…
…11110110010100
3100100100002221022
413333203312110
5233312234140
621150140312
73215565104
oct777436624
9310302838
10134102420
1169774151
1238ab1698
1321a23b5a
1413b4b204
15bb8e0b5
hex7fe3d94

134102420 has 48 divisors (see below), whose sum is σ = 294997248. Its totient is φ = 51110400.

The previous prime is 134102413. The next prime is 134102429. The reversal of 134102420 is 24201431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134102429) 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, 184097 + ... + 184823.

It is an arithmetic number, because the mean of its divisors is an integer number (6145776).

Almost surely, 2134102420 is an apocalyptic number.

134102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134102420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147498624).

134102420 is an abundant number, since it is smaller than the sum of its proper divisors (160894828).

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

134102420 is a wasteful number, since it uses less digits than its factorization.

134102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 134102420 is about 11580.2599279982. The cubic root of 134102420 is about 511.8533362877.

Adding to 134102420 its reverse (24201431), we get a palindrome (158303851).

The spelling of 134102420 in words is "one hundred thirty-four million, one hundred two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 401 460 727 802 1454 1604 2005 2908 3635 4010 7270 8020 9223 14540 16721 18446 33442 36892 46115 66884 83605 92230 167210 184460 291527 334420 583054 1166108 1457635 2915270 5830540 6705121 13410242 26820484 33525605 67051210 134102420