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47800001447 = 1117377197303
BaseRepresentation
bin101100100001000110…
…100010001110100111
311120101021010122221222
4230201012202032213
51240343300021242
633543051530555
73311346210542
oct544106421647
9146337118858
1047800001447
11192a9944630
129320159a5b
13467a03bc33
142456493859
15139b6785d2
hexb211a23a7

47800001447 has 32 divisors (see below), whose sum is σ = 57504328704. Its totient is φ = 39232166400.

The previous prime is 47800001443. The next prime is 47800001449. The reversal of 47800001447 is 74410000874.

It is a cyclic number.

It is not a de Polignac number, because 47800001447 - 22 = 47800001443 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 (47800001443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 442598 + ... + 539900.

It is an arithmetic number, because the mean of its divisors is an integer number (1797010272).

Almost surely, 247800001447 is an apocalyptic number.

47800001447 is a deficient number, since it is larger than the sum of its proper divisors (9704327257).

47800001447 is a wasteful number, since it uses less digits than its factorization.

47800001447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97439.

The product of its (nonzero) digits is 25088, while the sum is 35.

The spelling of 47800001447 in words is "forty-seven billion, eight hundred million, one thousand, four hundred forty-seven".

Divisors: 1 11 17 37 71 187 407 629 781 1207 2627 6919 13277 28897 44659 97303 491249 1070333 1654151 3600211 6908513 18195661 39602321 61203587 75993643 117444721 255614981 673239457 1291891931 2811764791 4345454677 47800001447