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42288470 = 257312329
BaseRepresentation
bin1010000101010…
…0010101010110
32221120110212122
42201110111112
541311212340
64110215542
71022306000
oct241242526
987513778
1042288470
1121963a54
12121b45b2
1389b8383
14588b370
153aa4db5
hex2854556

42288470 has 32 divisors (see below), whose sum is σ = 88776000. Its totient is φ = 14497728.

The previous prime is 42288461. The next prime is 42288473. The reversal of 42288470 is 7488224.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 42288470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42288473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2735 + ... + 9594.

It is an arithmetic number, because the mean of its divisors is an integer number (2774250).

Almost surely, 242288470 is an apocalyptic number.

42288470 is an abundant number, since it is smaller than the sum of its proper divisors (46487530).

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

42288470 is a wasteful number, since it uses less digits than its factorization.

42288470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12357 (or 12343 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 42288470 is about 6502.9585574568. The cubic root of 42288470 is about 348.3966664195.

The spelling of 42288470 in words is "forty-two million, two hundred eighty-eight thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 12329 24658 61645 86303 123290 172606 431515 604121 863030 1208242 3020605 4228847 6041210 8457694 21144235 42288470