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215468013372 = 22338946158529
BaseRepresentation
bin1100100010101011100…
…1001111011100111100
3202121011100002011211120
43020222321033130330
512012234302411442
6242552403150540
721365332615623
oct3105271173474
9677140064746
10215468013372
118341a092627
1235913975450
131741ab01001
14a6005326ba
1559113d44ec
hex322ae4f73c

215468013372 has 24 divisors (see below), whose sum is σ = 504051147600. Its totient is φ = 71638035456.

The previous prime is 215468013337. The next prime is 215468013373. The reversal of 215468013372 is 273310864512.

It is a super-3 number, since 3×2154680133723 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215468013373) 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, 23074597 + ... + 23083932.

It is an arithmetic number, because the mean of its divisors is an integer number (21002131150).

Almost surely, 2215468013372 is an apocalyptic number.

It is an amenable number.

215468013372 is an abundant number, since it is smaller than the sum of its proper divisors (288583134228).

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

215468013372 is a wasteful number, since it uses less digits than its factorization.

215468013372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46158925 (or 46158923 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 215468013372 its reverse (273310864512), we get a palindrome (488778877884).

The spelling of 215468013372 in words is "two hundred fifteen billion, four hundred sixty-eight million, thirteen thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 389 778 1167 1556 2334 4668 46158529 92317058 138475587 184634116 276951174 553902348 17955667781 35911335562 53867003343 71822671124 107734006686 215468013372