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102228588 = 223371119647
BaseRepresentation
bin1100001011111…
…10001001101100
321010100202021000
412011332021230
5202132303323
614051040300
72350633350
oct605761154
9233322230
10102228588
1152783940
122a2a0090
1318243cb7
14d811460
158e94e43
hex617e26c

102228588 has 192 divisors, whose sum is σ = 348364800. Its totient is φ = 25116480.

The previous prime is 102228571. The next prime is 102228589. The reversal of 102228588 is 885822201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (102228589) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157681 + ... + 158327.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2102228588 is an apocalyptic number.

102228588 is a gapful number since it is divisible by the number (18) 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 102228588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174182400).

102228588 is an abundant number, since it is smaller than the sum of its proper divisors (246136212).

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

102228588 is a wasteful number, since it uses less digits than its factorization.

102228588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 102228588 is about 10110.8153973851. The cubic root of 102228588 is about 467.5816445433.

The spelling of 102228588 in words is "one hundred two million, two hundred twenty-eight thousand, five hundred eighty-eight".