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123214040 = 23529106219
BaseRepresentation
bin1110101100000…
…01100011011000
322120211220212222
413112001203120
5223020322130
620120523212
73024205415
oct726014330
9276756788
10123214040
1163607594
1235320508
131c6b0b21
141251510c
15ac3cce5
hex75818d8

123214040 has 32 divisors (see below), whose sum is σ = 286794000. Its totient is φ = 47585664.

The previous prime is 123214027. The next prime is 123214097. The reversal of 123214040 is 40412321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51950 + ... + 54269.

Almost surely, 2123214040 is an apocalyptic number.

123214040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123214040 is an abundant number, since it is smaller than the sum of its proper divisors (163579960).

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

123214040 is a wasteful number, since it uses less digits than its factorization.

123214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106259 (or 106255 counting only the distinct ones).

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

The square root of 123214040 is about 11100.1819804902. The cubic root of 123214040 is about 497.6072881244.

Adding to 123214040 its reverse (40412321), we get a palindrome (163626361).

It can be divided in two parts, 12321 and 4040, that added together give a palindrome (16361).

The spelling of 123214040 in words is "one hundred twenty-three million, two hundred fourteen thousand, forty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 106219 212438 424876 531095 849752 1062190 2124380 3080351 4248760 6160702 12321404 15401755 24642808 30803510 61607020 123214040