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67030340 = 225131032503
BaseRepresentation
bin1111111110110…
…0110101000100
311200010111100012
43333230311010
5114124432330
610352405352
71442514506
oct377546504
9150114305
1067030340
1134922983
121a546858
1310b6bc30
148c8bd76
155d40c95
hex3fecd44

67030340 has 48 divisors (see below), whose sum is σ = 153124608. Its totient is φ = 24499584.

The previous prime is 67030333. The next prime is 67030391. The reversal of 67030340 is 4303076.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25529 + ... + 28031.

It is an arithmetic number, because the mean of its divisors is an integer number (3190096).

Almost surely, 267030340 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 67030340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76562304).

67030340 is an abundant number, since it is smaller than the sum of its proper divisors (86094268).

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

67030340 is a wasteful number, since it uses less digits than its factorization.

67030340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 67030340 is about 8187.2058725795. The cubic root of 67030340 is about 406.2161079418.

The spelling of 67030340 in words is "sixty-seven million, thirty thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 103 130 206 260 412 515 1030 1339 2060 2503 2678 5006 5356 6695 10012 12515 13390 25030 26780 32539 50060 65078 130156 162695 257809 325390 515618 650780 1031236 1289045 2578090 3351517 5156180 6703034 13406068 16757585 33515170 67030340