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47470442 = 2971791367
BaseRepresentation
bin1011010100010…
…1011101101010
310022022202012112
42311011131222
544123023232
64413242322
71114330535
oct265053552
9108282175
1047470442
1124883278
1213a933a2
139ab0c26
146439a1c
15427a4b2
hex2d4576a

47470442 has 16 divisors (see below), whose sum is σ = 72394560. Its totient is φ = 23342208.

The previous prime is 47470429. The next prime is 47470463. The reversal of 47470442 is 24407474.

It is a junction number, because it is equal to n+sod(n) for n = 47470399 and 47470408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34043 + ... + 35409.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 247470442 is an apocalyptic number.

47470442 is a deficient number, since it is larger than the sum of its proper divisors (24924118).

47470442 is a wasteful number, since it uses less digits than its factorization.

47470442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 47470442 is about 6889.8796796461. The cubic root of 47470442 is about 362.0826861575.

The spelling of 47470442 in words is "forty-seven million, four hundred seventy thousand, four hundred forty-two".

Divisors: 1 2 97 179 194 358 1367 2734 17363 34726 132599 244693 265198 489386 23735221 47470442