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121434310 = 2529418739
BaseRepresentation
bin1110011110011…
…11000011000110
322110111111120001
413033033003012
5222041344220
620014431514
73003113614
oct717170306
9273444501
10121434310
1162601438
123480259a
131c209a2a
14121b06b4
15a9da80a
hex73cf0c6

121434310 has 16 divisors (see below), whose sum is σ = 226119600. Its totient is φ = 46898656.

The previous prime is 121434233. The next prime is 121434317. The reversal of 121434310 is 13434121.

It is a super-2 number, since 2×1214343102 = 29492583290352200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121434317) 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, 209080 + ... + 209659.

It is an arithmetic number, because the mean of its divisors is an integer number (14132475).

Almost surely, 2121434310 is an apocalyptic number.

121434310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121434310 is a deficient number, since it is larger than the sum of its proper divisors (104685290).

121434310 is a wasteful number, since it uses less digits than its factorization.

121434310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418775.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 121434310 is about 11019.7236807463. The cubic root of 121434310 is about 495.1998105017.

Adding to 121434310 its reverse (13434121), we get a palindrome (134868431).

The spelling of 121434310 in words is "one hundred twenty-one million, four hundred thirty-four thousand, three hundred ten".

Divisors: 1 2 5 10 29 58 145 290 418739 837478 2093695 4187390 12143431 24286862 60717155 121434310