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29947048 = 233743381
BaseRepresentation
bin111001000111…
…1010010101000
32002100110121221
41302033102220
530131301143
62545511424
7512355115
oct162172250
962313557
1029947048
11159a472a
12a042574
136286b61
143d9790c
1529682ed
hex1c8f4a8

29947048 has 8 divisors (see below), whose sum is σ = 56150730. Its totient is φ = 14973520.

The previous prime is 29947033. The next prime is 29947079. The reversal of 29947048 is 84074992.

It can be written as a sum of positive squares in only one way, i.e., 15824484 + 14122564 = 3978^2 + 3758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 29946995 and 29947013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1871683 + ... + 1871698.

Almost surely, 229947048 is an apocalyptic number.

It is an amenable number.

29947048 is a deficient number, since it is larger than the sum of its proper divisors (26203682).

29947048 is a wasteful number, since it uses less digits than its factorization.

29947048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743387 (or 3743383 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 29947048 is about 5472.3896060131. The cubic root of 29947048 is about 310.5403271784.

The spelling of 29947048 in words is "twenty-nine million, nine hundred forty-seven thousand, forty-eight".

Divisors: 1 2 4 8 3743381 7486762 14973524 29947048