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121612480 = 2651134549
BaseRepresentation
bin1110011111110…
…10100011000000
322110211112221221
413033322203000
5222113044410
620022324424
73004455223
oct717724300
9273745857
10121612480
1162713290
1234889714
131c26cb62
14122195ba
15aa234da
hex73fa8c0

121612480 has 56 divisors (see below), whose sum is σ = 315925200. Its totient is φ = 44221440.

The previous prime is 121612397. The next prime is 121612487. The reversal of 121612480 is 84216121.

It is not an unprimeable number, because it can be changed into a prime (121612487) 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, 13755 + ... + 20794.

Almost surely, 2121612480 is an apocalyptic number.

121612480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121612480 is an abundant number, since it is smaller than the sum of its proper divisors (194312720).

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

121612480 is a wasteful number, since it uses less digits than its factorization.

121612480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34577 (or 34567 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 121612480 is about 11027.8048586289. The cubic root of 121612480 is about 495.4418800199.

It can be divided in two parts, 12161 and 2480, that added together give a palindrome (14641).

The spelling of 121612480 in words is "one hundred twenty-one million, six hundred twelve thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 160 176 220 320 352 440 704 880 1760 3520 34549 69098 138196 172745 276392 345490 380039 552784 690980 760078 1105568 1381960 1520156 1900195 2211136 2763920 3040312 3800390 5527840 6080624 7600780 11055680 12161248 15201560 24322496 30403120 60806240 121612480