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121629081484 = 22171788662963
BaseRepresentation
bin111000101000110101…
…0000111111110001100
3102121221112120112011201
41301101222013332030
53443044021101414
6131513045155244
711534040064051
oct1612152077614
9377845515151
10121629081484
114764549a159
121b6a53bbb24
13b614863001
145c5b84b028
15326ceeb574
hex1c51a87f8c

121629081484 has 12 divisors (see below), whose sum is σ = 225371533464. Its totient is φ = 57237214784.

The previous prime is 121629081479. The next prime is 121629081491. The reversal of 121629081484 is 484180926121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894331414 + ... + 894331549.

It is an arithmetic number, because the mean of its divisors is an integer number (18780961122).

Almost surely, 2121629081484 is an apocalyptic number.

It is an amenable number.

121629081484 is a deficient number, since it is larger than the sum of its proper divisors (103742451980).

121629081484 is a wasteful number, since it uses less digits than its factorization.

121629081484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788662984 (or 1788662982 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 121629081484 in words is "one hundred twenty-one billion, six hundred twenty-nine million, eighty-one thousand, four hundred eighty-four".

Divisors: 1 2 4 17 34 68 1788662963 3577325926 7154651852 30407270371 60814540742 121629081484