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67468945 = 5373471051
BaseRepresentation
bin1000000010101…
…11111010010001
311200221202222211
410001113322101
5114233001240
610410032121
71446322315
oct401277221
9150852884
1067468945
11350a2465
121a718641
1310c9376b
148d63b45
155dcabea
hex4057e91

67468945 has 16 divisors (see below), whose sum is σ = 83469888. Its totient is φ = 52315200.

The previous prime is 67468939. The next prime is 67468949. The reversal of 67468945 is 54986476.

It is not a de Polignac number, because 67468945 - 215 = 67436177 is a prime.

It is a house number.

It is a Duffinian number.

Its product of digits (1451520) is a multiple of the sum of its prime divisors (1440).

It is not an unprimeable number, because it can be changed into a prime (67468949) 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, 63670 + ... + 64720.

It is an arithmetic number, because the mean of its divisors is an integer number (5216868).

Almost surely, 267468945 is an apocalyptic number.

It is an amenable number.

67468945 is a deficient number, since it is larger than the sum of its proper divisors (16000943).

67468945 is a wasteful number, since it uses less digits than its factorization.

67468945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440.

The product of its digits is 1451520, while the sum is 49.

The square root of 67468945 is about 8213.9481980349. The cubic root of 67468945 is about 407.1001912523.

The spelling of 67468945 in words is "sixty-seven million, four hundred sixty-eight thousand, nine hundred forty-five".

Divisors: 1 5 37 185 347 1051 1735 5255 12839 38887 64195 194435 364697 1823485 13493789 67468945