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123413444140 = 22572184140361
BaseRepresentation
bin111001011110000000…
…0111011011000101100
3102210112220011112120111
41302330000323120230
54010222320203030
6132410110225404
711626204652410
oct1627400733054
9383486145514
10123413444140
1148380743238
121bb02ab5264
13b83a4395bc
145d8a812d40
1533249b662a
hex1cbc03b62c

123413444140 has 48 divisors (see below), whose sum is σ = 296213166144. Its totient is φ = 42310195200.

The previous prime is 123413444117. The next prime is 123413444179. The reversal of 123413444140 is 41444314321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3037560 + ... + 3077920.

It is an arithmetic number, because the mean of its divisors is an integer number (6171107628).

Almost surely, 2123413444140 is an apocalyptic number.

123413444140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123413444140 is an abundant number, since it is smaller than the sum of its proper divisors (172799722004).

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

123413444140 is a wasteful number, since it uses less digits than its factorization.

123413444140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62218 (or 62216 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 123413444140 its reverse (41444314321), we get a palindrome (164857758461).

The spelling of 123413444140 in words is "one hundred twenty-three billion, four hundred thirteen million, four hundred forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 21841 40361 43682 80722 87364 109205 152887 161444 201805 218410 282527 305774 403610 436820 565054 611548 764435 807220 1130108 1412635 1528870 2825270 3057740 5650540 881524601 1763049202 3526098404 4407623005 6170672207 8815246010 12341344414 17630492020 24682688828 30853361035 61706722070 123413444140