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84025020 = 22351400417
BaseRepresentation
bin1010000001000…
…01111010111100
312212002220122210
411000201322330
5133002300040
612200540420
72040125622
oct500417274
9185086583
1084025020
1143480272
1224181710
131453c461
14b233512
15759b480
hex5021ebc

84025020 has 24 divisors (see below), whose sum is σ = 235270224. Its totient is φ = 22406656.

The previous prime is 84025013. The next prime is 84025037. The reversal of 84025020 is 2052048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700149 + ... + 700268.

It is an arithmetic number, because the mean of its divisors is an integer number (9802926).

Almost surely, 284025020 is an apocalyptic number.

It is an amenable number.

84025020 is an abundant number, since it is smaller than the sum of its proper divisors (151245204).

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

84025020 is a wasteful number, since it uses less digits than its factorization.

84025020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400429 (or 1400427 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 84025020 is about 9166.5162411900. The cubic root of 84025020 is about 437.9953920409.

Adding to 84025020 its reverse (2052048), we get a palindrome (86077068).

The spelling of 84025020 in words is "eighty-four million, twenty-five thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1400417 2800834 4201251 5601668 7002085 8402502 14004170 16805004 21006255 28008340 42012510 84025020