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42698830 = 254269883
BaseRepresentation
bin1010001011100…
…0100001001110
32222100022210011
42202320201032
541412330310
64123103434
71025635246
oct242704116
988308704
1042698830
1122114299
1212371b7a
138b000a5
145956b26
153b3678a
hex28b884e

42698830 has 8 divisors (see below), whose sum is σ = 76857912. Its totient is φ = 17079528.

The previous prime is 42698827. The next prime is 42698857. The reversal of 42698830 is 3889624.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2134932 + ... + 2134951.

It is an arithmetic number, because the mean of its divisors is an integer number (9607239).

Almost surely, 242698830 is an apocalyptic number.

42698830 is a deficient number, since it is larger than the sum of its proper divisors (34159082).

42698830 is a wasteful number, since it uses less digits than its factorization.

42698830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269890.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 42698830 is about 6534.4341759635. The cubic root of 42698830 is about 349.5199677772.

The spelling of 42698830 in words is "forty-two million, six hundred ninety-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 4269883 8539766 21349415 42698830