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102000031002 = 23723319623
BaseRepresentation
bin101111011111110101…
…1001111010100011010
3100202021120001110000000
41132333223033110122
53132344001443002
6114505210353430
710240440646452
oct1367753172432
9322246043000
10102000031002
113a2923a3a91
121792772b876
139806c97c3c
144d18926d62
1529beb0661c
hex17bfacf51a

102000031002 has 32 divisors (see below), whose sum is σ = 229465100160. Its totient is φ = 34000008876.

The previous prime is 102000030973. The next prime is 102000031033. The reversal of 102000031002 is 200130000201.

It is a happy number.

It is a super-2 number, since 2×1020000310022 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11655438 + ... + 11664185.

It is an arithmetic number, because the mean of its divisors is an integer number (7170784380).

Almost surely, 2102000031002 is an apocalyptic number.

102000031002 is an abundant number, since it is smaller than the sum of its proper divisors (127465069158).

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

102000031002 is an frugal number, since it uses more digits than its factorization.

102000031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23319646 (or 23319628 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 102000031002 its reverse (200130000201), we get a palindrome (302130031203).

The spelling of 102000031002 in words is "one hundred two billion, thirty-one thousand, two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 729 1458 2187 4374 23319623 46639246 69958869 139917738 209876607 419753214 629629821 1259259642 1888889463 3777778926 5666668389 11333336778 17000005167 34000010334 51000015501 102000031002