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102485028 = 22310779817
BaseRepresentation
bin1100001101111…
…00110000100100
321010211210000210
412012330300210
5202214010103
614100335420
72353052112
oct606746044
9233753023
10102485028
1152939578
122a3a4570
1318303939
14d87aab2
158ee5e03
hex61bcc24

102485028 has 24 divisors (see below), whose sum is σ = 241369632. Its totient is φ = 33841984.

The previous prime is 102485023. The next prime is 102485029. The reversal of 102485028 is 820584201.

It is a junction number, because it is equal to n+sod(n) for n = 102484986 and 102485004.

It is not an unprimeable number, because it can be changed into a prime (102485023) 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, 38625 + ... + 41192.

It is an arithmetic number, because the mean of its divisors is an integer number (10057068).

Almost surely, 2102485028 is an apocalyptic number.

It is an amenable number.

102485028 is an abundant number, since it is smaller than the sum of its proper divisors (138884604).

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

102485028 is a wasteful number, since it uses less digits than its factorization.

102485028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79931 (or 79929 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 102485028 is about 10123.4889242790. The cubic root of 102485028 is about 467.9722936333.

The spelling of 102485028 in words is "one hundred two million, four hundred eighty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 79817 159634 239451 319268 478902 957804 8540419 17080838 25621257 34161676 51242514 102485028