Search a number
-
+
310213111211320 = 2359418241581063
BaseRepresentation
bin100011010001000110001111…
…0010011000110010100111000
31111200101002021002112001220011
41012202030132103012110320
5311130012422432230240
63015433534054111304
7122225105040424312
oct10642143623062470
91450332232461804
10310213111211320
118a930707048879
122a96146734b534
1310412c80cbb9c5
1456865750807b2
1525ce54cce46ea
hex11a231e4c6538

310213111211320 has 32 divisors (see below), whose sum is σ = 698721242605920. Its totient is φ = 123953379172480.

The previous prime is 310213111211303. The next prime is 310213111211327. The reversal of 310213111211320 is 23112111312013.

It is a super-7 number, since 7×3102131112113207 (a number of 103 digits) contains 7777777 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 310213111211291 and 310213111211300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310213111211327) 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, 4120752892 + ... + 4120828171.

It is an arithmetic number, because the mean of its divisors is an integer number (21835038831435).

Almost surely, 2310213111211320 is an apocalyptic number.

It is an amenable number.

310213111211320 is an abundant number, since it is smaller than the sum of its proper divisors (388508131394600).

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

310213111211320 is a wasteful number, since it uses less digits than its factorization.

310213111211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241582015 (or 8241582011 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 310213111211320 its reverse (23112111312013), we get a palindrome (333325222523333).

The spelling of 310213111211320 in words is "three hundred ten trillion, two hundred thirteen billion, one hundred eleven million, two hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 941 1882 3764 4705 7528 9410 18820 37640 8241581063 16483162126 32966324252 41207905315 65932648504 82415810630 164831621260 329663242520 7755327780283 15510655560566 31021311121132 38776638901415 62042622242264 77553277802830 155106555605660 310213111211320