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354442020 = 223521127997
BaseRepresentation
bin10101001000000…
…101101100100100
3220200221112001020
4111020011230210
51211214121040
655100531140
711532464442
oct2510055444
9820845036
10354442020
11172089599
129a850ab0
135858000a
1435105b92
15211b4cd0
hex15205b24

354442020 has 48 divisors (see below), whose sum is σ = 997176768. Its totient is φ = 94066560.

The previous prime is 354442013. The next prime is 354442021. The reversal of 354442020 is 20244453.

It is not an unprimeable number, because it can be changed into a prime (354442021) 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, 1339 + ... + 26658.

It is an arithmetic number, because the mean of its divisors is an integer number (20774516).

Almost surely, 2354442020 is an apocalyptic number.

354442020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

354442020 is an abundant number, since it is smaller than the sum of its proper divisors (642734748).

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

354442020 is a wasteful number, since it uses less digits than its factorization.

354442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28220 (or 28218 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 354442020 is about 18826.6306066699. The cubic root of 354442020 is about 707.6987051491.

Adding to 354442020 its reverse (20244453), we get a palindrome (374686473).

The spelling of 354442020 in words is "three hundred fifty-four million, four hundred forty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 211 422 633 844 1055 1266 2110 2532 3165 4220 6330 12660 27997 55994 83991 111988 139985 167982 279970 335964 419955 559940 839910 1679820 5907367 11814734 17722101 23629468 29536835 35444202 59073670 70888404 88610505 118147340 177221010 354442020