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47534380 = 22517251557
BaseRepresentation
bin1011010101010…
…1000100101100
310022102222220121
42311111010230
544132100010
64414454324
71115015125
oct265250454
9108388817
1047534380
1124917313
1213b043a4
139b0406a
14645504c
15428e3da
hex2d5512c

47534380 has 48 divisors (see below), whose sum is σ = 106305696. Its totient is φ = 17792000.

The previous prime is 47534369. The next prime is 47534387. The reversal of 47534380 is 8343574.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (47534387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85062 + ... + 85618.

It is an arithmetic number, because the mean of its divisors is an integer number (2214702).

Almost surely, 247534380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47534380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53152848).

47534380 is an abundant number, since it is smaller than the sum of its proper divisors (58771316).

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

47534380 is a wasteful number, since it uses less digits than its factorization.

47534380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 47534380 is about 6894.5181122396. The cubic root of 47534380 is about 362.2451764399.

The spelling of 47534380 in words is "forty-seven million, five hundred thirty-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 251 340 502 557 1004 1114 1255 2228 2510 2785 4267 5020 5570 8534 9469 11140 17068 18938 21335 37876 42670 47345 85340 94690 139807 189380 279614 559228 699035 1398070 2376719 2796140 4753438 9506876 11883595 23767190 47534380