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121745046 = 23191067939
BaseRepresentation
bin1110100000110…
…10111010010110
322111002021210210
413100122322112
5222131320141
620025230250
73005546553
oct720327226
9274067723
10121745046
11627a3945
1234932386
131c2b82b7
1412251a2a
15aa4c916
hex741ae96

121745046 has 16 divisors (see below), whose sum is σ = 256305600. Its totient is φ = 38445768.

The previous prime is 121745011. The next prime is 121745047. The reversal of 121745046 is 640547121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121745047) 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, 533856 + ... + 534083.

It is an arithmetic number, because the mean of its divisors is an integer number (16019100).

Almost surely, 2121745046 is an apocalyptic number.

121745046 is an abundant number, since it is smaller than the sum of its proper divisors (134560554).

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

121745046 is a wasteful number, since it uses less digits than its factorization.

121745046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067963.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 121745046 is about 11033.8137559051. The cubic root of 121745046 is about 495.6218365998.

The spelling of 121745046 in words is "one hundred twenty-one million, seven hundred forty-five thousand, forty-six".

Divisors: 1 2 3 6 19 38 57 114 1067939 2135878 3203817 6407634 20290841 40581682 60872523 121745046