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138754098 = 23278531291
BaseRepresentation
bin10000100010100…
…11100000110010
3100200002102211200
420101103200302
5241010112343
621433552030
73303250620
oct1021234062
9320072750
10138754098
117136100a
123a575616
1322992222
14145dc510
15c2ac4d3
hex8453832

138754098 has 48 divisors (see below), whose sum is σ = 344250816. Its totient is φ = 39566880.

The previous prime is 138754087. The next prime is 138754111. The reversal of 138754098 is 890457831.

138754098 is a `hidden beast` number, since 13 + 8 + 7 + 540 + 98 = 666.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106833 + ... + 108123.

It is an arithmetic number, because the mean of its divisors is an integer number (7171892).

Almost surely, 2138754098 is an apocalyptic number.

138754098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

138754098 is an abundant number, since it is smaller than the sum of its proper divisors (205496718).

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

138754098 is a wasteful number, since it uses less digits than its factorization.

138754098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 138754098 is about 11779.3929385177. The cubic root of 138754098 is about 517.7044994480.

The spelling of 138754098 in words is "one hundred thirty-eight million, seven hundred fifty-four thousand, ninety-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 853 1291 1706 2559 2582 3873 5118 5971 7677 7746 9037 11619 11942 15354 17913 18074 23238 27111 35826 53739 54222 81333 107478 162666 1101223 2202446 3303669 6607338 7708561 9911007 15417122 19822014 23125683 46251366 69377049 138754098