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249202942 = 2563221317
BaseRepresentation
bin11101101101010…
…00100011111110
3122100220211011121
432312220203332
51002243443232
640421141154
76114122122
oct1666504376
9570824147
10249202942
1111873994a
126b55a7ba
133c823981
142514d582
1516d27d97
hexeda88fe

249202942 has 8 divisors (see below), whose sum is σ = 374470056. Its totient is φ = 124379592.

The previous prime is 249202927. The next prime is 249202957.

249202942 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (249202927) and next prime (249202957).

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

It is a junction number, because it is equal to n+sod(n) for n = 249202898 and 249202907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109533 + ... + 111784.

It is an arithmetic number, because the mean of its divisors is an integer number (46808757).

Almost surely, 2249202942 is an apocalyptic number.

249202942 is a deficient number, since it is larger than the sum of its proper divisors (125267114).

249202942 is a wasteful number, since it uses less digits than its factorization.

249202942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221882.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 249202942 is about 15786.1629916836. The cubic root of 249202942 is about 629.2903254234.

The spelling of 249202942 in words is "two hundred forty-nine million, two hundred two thousand, nine hundred forty-two".

Divisors: 1 2 563 1126 221317 442634 124601471 249202942