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121314040 = 23517178403
BaseRepresentation
bin1110011101100…
…01101011111000
322110021101120121
413032301223320
5222024022130
620012103024
73002103151
oct716615370
9273241517
10121314040
116252a041
1234764a74
131c197073
141217c928
15a9b4d7a
hex73b1af8

121314040 has 32 divisors (see below), whose sum is σ = 289014480. Its totient is φ = 45670912.

The previous prime is 121313999. The next prime is 121314049. The reversal of 121314040 is 40413121.

It is a super-2 number, since 2×1213140402 = 29434192602243200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121314049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88522 + ... + 89881.

Almost surely, 2121314040 is an apocalyptic number.

121314040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121314040 is an abundant number, since it is smaller than the sum of its proper divisors (167700440).

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

121314040 is a wasteful number, since it uses less digits than its factorization.

121314040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178431 (or 178427 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121314040 is about 11014.2652955156. The cubic root of 121314040 is about 495.0362725520.

Adding to 121314040 its reverse (40413121), we get a palindrome (161727161).

The spelling of 121314040 in words is "one hundred twenty-one million, three hundred fourteen thousand, forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 178403 356806 713612 892015 1427224 1784030 3032851 3568060 6065702 7136120 12131404 15164255 24262808 30328510 60657020 121314040