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74869955 = 517880823
BaseRepresentation
bin1000111011001…
…10110011000011
312012212210021022
410131212303003
5123131314310
611232420055
71566245516
oct435466303
9165783238
1074869955
11392979a6
12210a762b
1312685364
149d2cd7d
15688da55
hex4766cc3

74869955 has 8 divisors (see below), whose sum is σ = 95128992. Its totient is φ = 56372608.

The previous prime is 74869931. The next prime is 74869957. The reversal of 74869955 is 55996847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74869955 - 218 = 74607811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74869897 and 74869906.

It is not an unprimeable number, because it can be changed into a prime (74869957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440327 + ... + 440496.

It is an arithmetic number, because the mean of its divisors is an integer number (11891124).

Almost surely, 274869955 is an apocalyptic number.

74869955 is a deficient number, since it is larger than the sum of its proper divisors (20259037).

74869955 is a wasteful number, since it uses less digits than its factorization.

74869955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880845.

The product of its digits is 2721600, while the sum is 53.

The square root of 74869955 is about 8652.7426287854. The cubic root of 74869955 is about 421.4724489684.

The spelling of 74869955 in words is "seventy-four million, eight hundred sixty-nine thousand, nine hundred fifty-five".

Divisors: 1 5 17 85 880823 4404115 14973991 74869955