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102282972 = 223113312341
BaseRepresentation
bin1100001100010…
…11011011011100
321010110111212020
412012023123130
5202141023342
614052140140
72351251041
oct606133334
9233414766
10102282972
1152810790
122a307650
131826298c
14d8271c8
158ea60ec
hex618b6dc

102282972 has 48 divisors (see below), whose sum is σ = 261254784. Its totient is φ = 30888000.

The previous prime is 102282953. The next prime is 102282977. The reversal of 102282972 is 279282201.

It is a super-2 number, since 2×1022829722 = 20923612722305568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102282977) 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, 42522 + ... + 44862.

It is an arithmetic number, because the mean of its divisors is an integer number (5442808).

Almost surely, 2102282972 is an apocalyptic number.

102282972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102282972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130627392).

102282972 is an abundant number, since it is smaller than the sum of its proper divisors (158971812).

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

102282972 is a wasteful number, since it uses less digits than its factorization.

102282972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 102282972 is about 10113.5044371375. The cubic root of 102282972 is about 467.6645452032.

The spelling of 102282972 in words is "one hundred two million, two hundred eighty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 331 662 993 1324 1986 2341 3641 3972 4682 7023 7282 9364 10923 14046 14564 21846 25751 28092 43692 51502 77253 103004 154506 309012 774871 1549742 2324613 3099484 4649226 8523581 9298452 17047162 25570743 34094324 51141486 102282972