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70121148 = 2235843429
BaseRepresentation
bin1000010110111…
…11011010111100
311212221112010120
410023133122330
5120422334043
610542534540
71511006556
oct413373274
9155845116
1070121148
1136644069
121b597450
13116b1a06
1494544d6
156251983
hex42df6bc

70121148 has 12 divisors (see below), whose sum is σ = 163616040. Its totient is φ = 23373712.

The previous prime is 70121143. The next prime is 70121167. The reversal of 70121148 is 84112107.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70121143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2921703 + ... + 2921726.

It is an arithmetic number, because the mean of its divisors is an integer number (13634670).

Almost surely, 270121148 is an apocalyptic number.

It is an amenable number.

70121148 is an abundant number, since it is smaller than the sum of its proper divisors (93494892).

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

70121148 is a wasteful number, since it uses less digits than its factorization.

70121148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843436 (or 5843434 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 70121148 is about 8373.8371132952. The cubic root of 70121148 is about 412.3661479393.

The spelling of 70121148 in words is "seventy million, one hundred twenty-one thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 5843429 11686858 17530287 23373716 35060574 70121148