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67379603990 = 257507897557
BaseRepresentation
bin111110110000001000…
…110010101000010110
320102220210121112022112
4332300020302220112
52100443134311430
650542002431022
74603505120066
oct766010625026
9212823545275
1067379603990
1126637036836
1211085362472
13647a5b2c7a
1433929c53a6
151b45552195
hexfb0232a16

67379603990 has 16 divisors (see below), whose sum is σ = 121299578352. Its totient is φ = 26948221344.

The previous prime is 67379603987. The next prime is 67379604013. The reversal of 67379603990 is 9930697376.

It is a super-2 number, since 2×673796039902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373709 + ... + 523848.

It is an arithmetic number, because the mean of its divisors is an integer number (7581223647).

Almost surely, 267379603990 is an apocalyptic number.

67379603990 is a deficient number, since it is larger than the sum of its proper divisors (53919974362).

67379603990 is a wasteful number, since it uses less digits than its factorization.

67379603990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905071.

The product of its (nonzero) digits is 11573604, while the sum is 59.

The spelling of 67379603990 in words is "sixty-seven billion, three hundred seventy-nine million, six hundred three thousand, nine hundred ninety".

Divisors: 1 2 5 10 7507 15014 37535 75070 897557 1795114 4487785 8975570 6737960399 13475920798 33689801995 67379603990