Search a number
-
+
1301301111220 = 2251143137558257
BaseRepresentation
bin10010111011111011100…
…101110010100110110100
311121101212220121202021121
4102323323211302212310
5132310031041024340
62433450502553324
7163005311640505
oct22737345624664
94541786552247
101301301111220
11461973609320
1219024b138844
1395934831136
1446daa2b8bac
1523cb328494a
hex12efb9729b4

1301301111220 has 48 divisors (see below), whose sum is σ = 3050491929408. Its totient is φ = 462195740160.

The previous prime is 1301301111199. The next prime is 1301301111221. The reversal of 1301301111220 is 221111031031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1301301111194 and 1301301111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301301111221) 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, 68769669 + ... + 68788588.

It is an arithmetic number, because the mean of its divisors is an integer number (63551915196).

Almost surely, 21301301111220 is an apocalyptic number.

1301301111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301301111220 is an abundant number, since it is smaller than the sum of its proper divisors (1749190818188).

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

1301301111220 is a wasteful number, since it uses less digits than its factorization.

1301301111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137558320 (or 137558318 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1301301111220 its reverse (221111031031), we get a palindrome (1522412142251).

The spelling of 1301301111220 in words is "one trillion, three hundred one billion, three hundred one million, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 43 44 55 86 110 172 215 220 430 473 860 946 1892 2365 4730 9460 137558257 275116514 550233028 687791285 1375582570 1513140827 2751165140 3026281654 5915005051 6052563308 7565704135 11830010102 15131408270 23660020204 29575025255 30262816540 59150050510 65065055561 118300101020 130130111122 260260222244 325325277805 650650555610 1301301111220