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123412214320 = 2451542652679
BaseRepresentation
bin111001011101111110…
…0001111001000110000
3102210112210212001120121
41302323330033020300
54010222011324240
6132410024020024
711626161341053
oct1627374171060
9383483761517
10123412214320
114837aa8325a
121bb02601614
13b83a0c88b5
145d8a5b2a9a
15332482204a
hex1cbbf0f230

123412214320 has 20 divisors (see below), whose sum is σ = 286933398480. Its totient is φ = 49364885696.

The previous prime is 123412214311. The next prime is 123412214347. The reversal of 123412214320 is 23412214321.

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

It is a super-2 number, since 2×1234122143202 (a number of 23 digits) contains 22 as substring.

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, 771326260 + ... + 771326419.

It is an arithmetic number, because the mean of its divisors is an integer number (14346669924).

Almost surely, 2123412214320 is an apocalyptic number.

123412214320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123412214320 is an abundant number, since it is smaller than the sum of its proper divisors (163521184160).

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

123412214320 is a wasteful number, since it uses less digits than its factorization.

123412214320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542652692 (or 1542652686 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 123412214320 its reverse (23412214321), we get a palindrome (146824428641).

Subtracting from 123412214320 its reverse (23412214321), we obtain a palindrome (99999999999).

The spelling of 123412214320 in words is "one hundred twenty-three billion, four hundred twelve million, two hundred fourteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1542652679 3085305358 6170610716 7713263395 12341221432 15426526790 24682442864 30853053580 61706107160 123412214320