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121697630 = 25293113537
BaseRepresentation
bin1110100000011…
…11010101011110
322110222212202122
413100033111132
5222123311010
620024222542
73005261405
oct720172536
9273885678
10121697630
116277125a
123490aa52
131c29c842
141223c63c
15aa3d855
hex740f55e

121697630 has 32 divisors (see below), whose sum is σ = 233936640. Its totient is φ = 45480960.

The previous prime is 121697629. The next prime is 121697633. The reversal of 121697630 is 36796121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121697633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2222 + ... + 15758.

It is an arithmetic number, because the mean of its divisors is an integer number (7310520).

Almost surely, 2121697630 is an apocalyptic number.

121697630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121697630 is a deficient number, since it is larger than the sum of its proper divisors (112239010).

121697630 is a wasteful number, since it uses less digits than its factorization.

121697630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13604.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 121697630 is about 11031.6648788839. The cubic root of 121697630 is about 495.5574850243.

The spelling of 121697630 in words is "one hundred twenty-one million, six hundred ninety-seven thousand, six hundred thirty".

Divisors: 1 2 5 10 29 31 58 62 145 155 290 310 899 1798 4495 8990 13537 27074 67685 135370 392573 419647 785146 839294 1962865 2098235 3925730 4196470 12169763 24339526 60848815 121697630