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102240141040 = 2451278001763
BaseRepresentation
bin101111100110111111…
…1001011111011110000
3100202220021212022001101
41133031333023323300
53133341434003130
6114545105014144
710246414600642
oct1371577137360
9322807768041
10102240141040
113a3a5992234
1217994024354
139844956b9b
144d3c78a892
1529d5c351ca
hex17cdfcbef0

102240141040 has 20 divisors (see below), whose sum is σ = 237708328104. Its totient is φ = 40896056384.

The previous prime is 102240141013. The next prime is 102240141053. The reversal of 102240141040 is 40141042201.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 102240140999 and 102240141017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639000802 + ... + 639000961.

Almost surely, 2102240141040 is an apocalyptic number.

102240141040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102240141040 is an abundant number, since it is smaller than the sum of its proper divisors (135468187064).

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

102240141040 is a wasteful number, since it uses less digits than its factorization.

102240141040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278001776 (or 1278001770 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102240141040 its reverse (40141042201), we get a palindrome (142381183241).

The spelling of 102240141040 in words is "one hundred two billion, two hundred forty million, one hundred forty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1278001763 2556003526 5112007052 6390008815 10224014104 12780017630 20448028208 25560035260 51120070520 102240141040