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67097070 = 2325799437
BaseRepresentation
bin1111111111110…
…1000111101110
311200020212212200
43333331013232
5114134101240
610354042330
71443213165
oct377750756
9150225780
1067097070
1134969027
121a5793a6
1310b93411
148ca83dc
155d55930
hex3ffd1ee

67097070 has 48 divisors (see below), whose sum is σ = 176679360. Its totient is φ = 17664192.

The previous prime is 67097053. The next prime is 67097081. The reversal of 67097070 is 7079076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2392 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (3680820).

Almost surely, 267097070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67097070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88339680).

67097070 is an abundant number, since it is smaller than the sum of its proper divisors (109582290).

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

67097070 is a wasteful number, since it uses less digits than its factorization.

67097070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9529 (or 9526 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 67097070 is about 8191.2801197371. The cubic root of 67097070 is about 406.3508618992.

The spelling of 67097070 in words is "sixty-seven million, ninety-seven thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 79 90 158 237 395 474 711 790 1185 1422 2370 3555 7110 9437 18874 28311 47185 56622 84933 94370 141555 169866 283110 424665 745523 849330 1491046 2236569 3727615 4473138 6709707 7455230 11182845 13419414 22365690 33548535 67097070