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102102231210 = 2357486201101
BaseRepresentation
bin101111100010111000…
…1000110100010101010
3100202112200100202022220
41133011301012202222
53133101132344320
6114523301054510
710243121434320
oct1370561064252
9322480322286
10102102231210
113a335058571
12179559b7436
1398221cc035
144d2832bd10
1529c8a92e40
hex17c5c468aa

102102231210 has 32 divisors (see below), whose sum is σ = 280051834752. Its totient is φ = 23337652800.

The previous prime is 102102231131. The next prime is 102102231211. The reversal of 102102231210 is 12132201201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102102231210.

It is not an unprimeable number, because it can be changed into a prime (102102231211) 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, 243100341 + ... + 243100760.

It is an arithmetic number, because the mean of its divisors is an integer number (8751619836).

Almost surely, 2102102231210 is an apocalyptic number.

102102231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102231210 is an abundant number, since it is smaller than the sum of its proper divisors (177949603542).

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

102102231210 is a wasteful number, since it uses less digits than its factorization.

102102231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486201118.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102102231210 its reverse (12132201201), we get a palindrome (114234432411).

The spelling of 102102231210 in words is "one hundred two billion, one hundred two million, two hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 486201101 972402202 1458603303 2431005505 2917206606 3403407707 4862011010 6806815414 7293016515 10210223121 14586033030 17017038535 20420446242 34034077070 51051115605 102102231210