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102982477 = 1323344423
BaseRepresentation
bin1100010001101…
…10001101001101
321011210001101211
412020312031031
5202330414402
614115134421
72360223313
oct610661515
9234701354
10102982477
1153149294
122a5a4411
13184491a0
14d96a0b3
1590934d7
hex623634d

102982477 has 8 divisors (see below), whose sum is σ = 115726464. Its totient is φ = 90927408.

The previous prime is 102982441. The next prime is 102982493. The reversal of 102982477 is 774289201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-102982477 is a prime.

It is a super-3 number, since 3×1029824773 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102982577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171913 + ... + 172510.

It is an arithmetic number, because the mean of its divisors is an integer number (14465808).

Almost surely, 2102982477 is an apocalyptic number.

It is an amenable number.

102982477 is a deficient number, since it is larger than the sum of its proper divisors (12743987).

102982477 is a wasteful number, since it uses less digits than its factorization.

102982477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344459.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 102982477 is about 10148.0282321247. The cubic root of 102982477 is about 468.7282307638.

The spelling of 102982477 in words is "one hundred two million, nine hundred eighty-two thousand, four hundred seventy-seven".

Divisors: 1 13 23 299 344423 4477499 7921729 102982477