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121407242060 = 225131636328537
BaseRepresentation
bin111000100010001101…
…1110111111101001100
3102121101002010220200202
41301010123313331030
53442120223221220
6131435042313032
711525404346636
oct1610433677514
9377332126622
10121407242060
114754124a995
121b643058778
13b5aa900290
145c3a1c1a56
1532587cb275
hex1c446f7f4c

121407242060 has 48 divisors (see below), whose sum is σ = 274593549216. Its totient is φ = 44822979072.

The previous prime is 121407242029. The next prime is 121407242083. The reversal of 121407242060 is 60242704121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4240112 + ... + 4268648.

It is an arithmetic number, because the mean of its divisors is an integer number (5720698942).

Almost surely, 2121407242060 is an apocalyptic number.

121407242060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121407242060 is an abundant number, since it is smaller than the sum of its proper divisors (153186307156).

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

121407242060 is a wasteful number, since it uses less digits than its factorization.

121407242060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44922 (or 44920 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 121407242060 its reverse (60242704121), we get a palindrome (181649946181).

The spelling of 121407242060 in words is "one hundred twenty-one billion, four hundred seven million, two hundred forty-two thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 16363 28537 32726 57074 65452 81815 114148 142685 163630 212719 285370 327260 370981 425438 570740 741962 850876 1063595 1483924 1854905 2127190 3709810 4254380 7419620 466950931 933901862 1867803724 2334754655 4669509310 6070362103 9339018620 12140724206 24281448412 30351810515 60703621030 121407242060