Search a number
-
+
121302131480 = 23529104570803
BaseRepresentation
bin111000011111000101…
…0111010001100011000
3102121002202100202002022
41300332022322030120
53441411321201410
6131420405354012
711522660051045
oct1607612721430
9377082322068
10121302131480
1147497988842
121b613a08908
13b591bba57a
145c2a2601cc
15324e467455
hex1c3e2ba318

121302131480 has 32 divisors (see below), whose sum is σ = 282341170800. Its totient is φ = 46847719296.

The previous prime is 121302131479. The next prime is 121302131521. The reversal of 121302131480 is 84131203121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52284242 + ... + 52286561.

Almost surely, 2121302131480 is an apocalyptic number.

121302131480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121302131480 is an abundant number, since it is smaller than the sum of its proper divisors (161039039320).

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

121302131480 is a wasteful number, since it uses less digits than its factorization.

121302131480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104570843 (or 104570839 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 121302131480 in words is "one hundred twenty-one billion, three hundred two million, one hundred thirty-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 104570803 209141606 418283212 522854015 836566424 1045708030 2091416060 3032553287 4182832120 6065106574 12130213148 15162766435 24260426296 30325532870 60651065740 121302131480