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49942572 = 2234161881
BaseRepresentation
bin1011111010000…
…1000000101100
310110222100022220
42332201000230
5100241130242
64542235340
71144335111
oct276410054
9113870286
1049942572
1126211659
1214885b50
13a468224
1468c0908
1545b7bec
hex2fa102c

49942572 has 12 divisors (see below), whose sum is σ = 116532696. Its totient is φ = 16647520.

The previous prime is 49942567. The next prime is 49942573. The reversal of 49942572 is 27524994.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (49942573) 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 3 ways as a sum of consecutive naturals, for example, 2080929 + ... + 2080952.

It is an arithmetic number, because the mean of its divisors is an integer number (9711058).

Almost surely, 249942572 is an apocalyptic number.

It is an amenable number.

49942572 is an abundant number, since it is smaller than the sum of its proper divisors (66590124).

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

49942572 is a wasteful number, since it uses less digits than its factorization.

49942572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161888 (or 4161886 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 49942572 is about 7067.0058723621. The cubic root of 49942572 is about 368.2620514563.

It can be divided in two parts, 499 and 42572, that added together give a triangular number (43071 = T293).

The spelling of 49942572 in words is "forty-nine million, nine hundred forty-two thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 4161881 8323762 12485643 16647524 24971286 49942572