Search a number
-
+
121485868 = 22717924239
BaseRepresentation
bin1110011110110…
…11101000101100
322110121010021121
413033123220230
5222100021433
620015510324
73003420130
oct717335054
9273533247
10121485868
1162637149
12348283a4
131c22733a
14121c53c0
15a9eac2d
hex73dba2c

121485868 has 24 divisors (see below), whose sum is σ = 244339200. Its totient is φ = 51772368.

The previous prime is 121485821. The next prime is 121485883. The reversal of 121485868 is 868584121.

It is a super-2 number, since 2×1214858682 = 29517632247426848, which contains 22 as substring.

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, 7108 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (10180800).

Almost surely, 2121485868 is an apocalyptic number.

It is an amenable number.

121485868 is an abundant number, since it is smaller than the sum of its proper divisors (122853332).

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

121485868 is a wasteful number, since it uses less digits than its factorization.

121485868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24429 (or 24427 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The square root of 121485868 is about 11022.0627833450. The cubic root of 121485868 is about 495.2698837765.

The spelling of 121485868 in words is "one hundred twenty-one million, four hundred eighty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 179 358 716 1253 2506 5012 24239 48478 96956 169673 339346 678692 4338781 8677562 17355124 30371467 60742934 121485868