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102411440 = 2454131223
BaseRepresentation
bin1100001101010…
…10110010110000
321010201001002022
412012222302300
5202204131230
614055011012
72352324425
oct606526260
9233631068
10102411440
115289925a
122a369a68
13182a92b1
14d85bd4c
158ece1e5
hex61aacb0

102411440 has 40 divisors (see below), whose sum is σ = 243921888. Its totient is φ = 39964160.

The previous prime is 102411431. The next prime is 102411457. The reversal of 102411440 is 44114201.

It is a tau number, because it is divible by the number of its divisors (40).

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, 12332 + ... + 18891.

Almost surely, 2102411440 is an apocalyptic number.

102411440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102411440 is an abundant number, since it is smaller than the sum of its proper divisors (141510448).

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

102411440 is a wasteful number, since it uses less digits than its factorization.

102411440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31277 (or 31271 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 102411440 is about 10119.8537538840. The cubic root of 102411440 is about 467.8602597377.

Adding to 102411440 its reverse (44114201), we get a palindrome (146525641).

The spelling of 102411440 in words is "one hundred two million, four hundred eleven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 41 80 82 164 205 328 410 656 820 1640 3280 31223 62446 124892 156115 249784 312230 499568 624460 1248920 1280143 2497840 2560286 5120572 6400715 10241144 12801430 20482288 25602860 51205720 102411440