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102213210331 = 1912457431857
BaseRepresentation
bin101111100110001100…
…0011101000011011011
3100202211102012002001201
41133030120131003123
53133313040212311
6114542303455031
710245636644521
oct1371430350333
9322742162051
10102213210331
113a391768851
1217986bb7477
13983c1b7c5b
144d38d7a311
1529d36b59c1
hex17cc61d0db

102213210331 has 8 divisors (see below), whose sum is σ = 107601739280. Its totient is φ = 96825570048.

The previous prime is 102213210317. The next prime is 102213210361. The reversal of 102213210331 is 133012312201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102213210331 is a prime.

It is a super-2 number, since 2×1022132103312 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102213210299 and 102213210308.

It is not an unprimeable number, because it can be changed into a prime (102213210361) 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, 20755 + ... + 452611.

It is an arithmetic number, because the mean of its divisors is an integer number (13450217410).

Almost surely, 2102213210331 is an apocalyptic number.

102213210331 is a deficient number, since it is larger than the sum of its proper divisors (5388528949).

102213210331 is a wasteful number, since it uses less digits than its factorization.

102213210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444333.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102213210331 its reverse (133012312201), we get a palindrome (235225522532).

The spelling of 102213210331 in words is "one hundred two billion, two hundred thirteen million, two hundred ten thousand, three hundred thirty-one".

Divisors: 1 19 12457 236683 431857 8205283 5379642649 102213210331