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78053350 = 25231371361
BaseRepresentation
bin1001010011011…
…11111111100110
312102212112001211
410221233333212
5124440201400
611424542034
71635304534
oct451577746
9172775054
1078053350
1140071701
122218191a
131322b31b
14a51b154
156cbbdba
hex4a6ffe6

78053350 has 48 divisors (see below), whose sum is σ = 154025856. Its totient is φ = 29376000.

The previous prime is 78053333. The next prime is 78053357. The reversal of 78053350 is 5335087.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78053357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56670 + ... + 58030.

It is an arithmetic number, because the mean of its divisors is an integer number (3208872).

Almost surely, 278053350 is an apocalyptic number.

78053350 is a deficient number, since it is larger than the sum of its proper divisors (75972506).

78053350 is a wasteful number, since it uses less digits than its factorization.

78053350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 78053350 is about 8834.7806990327. The cubic root of 78053350 is about 427.3632589350.

The spelling of 78053350 in words is "seventy-eight million, fifty-three thousand, three hundred fifty".

Divisors: 1 2 5 10 25 31 37 50 62 74 155 185 310 370 775 925 1147 1361 1550 1850 2294 2722 5735 6805 11470 13610 28675 34025 42191 50357 57350 68050 84382 100714 210955 251785 421910 503570 1054775 1258925 1561067 2109550 2517850 3122134 7805335 15610670 39026675 78053350