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121464767220 = 223514913586663
BaseRepresentation
bin111000100011111011…
…1010100001011110100
3102121112002101111101020
41301013313110023310
53442224440022340
6131444455301140
711530003325526
oct1610767241364
9377462344336
10121464767220
1147570770445
121b65a37a7b0
13b5b97c1934
145c43ab7a16
15325d8909d0
hex1c47dd42f4

121464767220 has 48 divisors (see below), whose sum is σ = 342383932800. Its totient is φ = 32173215616.

The previous prime is 121464767209. The next prime is 121464767261. The reversal of 121464767220 is 22767464121.

It is a super-3 number, since 3×1214647672203 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

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, 6784392 + ... + 6802271.

It is an arithmetic number, because the mean of its divisors is an integer number (7132998600).

Almost surely, 2121464767220 is an apocalyptic number.

121464767220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121464767220 is an abundant number, since it is smaller than the sum of its proper divisors (220919165580).

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

121464767220 is a wasteful number, since it uses less digits than its factorization.

121464767220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13586824 (or 13586822 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 121464767220 in words is "one hundred twenty-one billion, four hundred sixty-four million, seven hundred sixty-seven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 149 298 447 596 745 894 1490 1788 2235 2980 4470 8940 13586663 27173326 40759989 54346652 67933315 81519978 135866630 163039956 203799945 271733260 407599890 815199780 2024412787 4048825574 6073238361 8097651148 10122063935 12146476722 20244127870 24292953444 30366191805 40488255740 60732383610 121464767220