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442362949 = 7792393347
BaseRepresentation
bin11010010111011…
…110110001000101
31010211101100212221
4122113132301011
51401221103244
6111521212341
713651010620
oct3227366105
91124340787
10442362949
1120777a916
121041910b1
1370854832
1442a70db7
1528c80784
hex1a5dec45

442362949 has 16 divisors (see below), whose sum is σ = 514252800. Its totient is φ = 372690864.

The previous prime is 442362937. The next prime is 442362953. The reversal of 442362949 is 949263244.

It is a happy number.

It is not a de Polignac number, because 442362949 - 223 = 433974341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442332949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130494 + ... + 133840.

It is an arithmetic number, because the mean of its divisors is an integer number (32140800).

Almost surely, 2442362949 is an apocalyptic number.

It is an amenable number.

442362949 is a deficient number, since it is larger than the sum of its proper divisors (71889851).

442362949 is a wasteful number, since it uses less digits than its factorization.

442362949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672.

The product of its digits is 373248, while the sum is 43.

The square root of 442362949 is about 21032.4261320467. The cubic root of 442362949 is about 761.9496049182.

The spelling of 442362949 in words is "four hundred forty-two million, three hundred sixty-two thousand, nine hundred forty-nine".

Divisors: 1 7 79 239 553 1673 3347 18881 23429 132167 264413 799933 1850891 5599531 63194707 442362949