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745473976 = 231323311653
BaseRepresentation
bin101100011011110…
…000011110111000
31220221202000001021
4230123300132320
53011320131401
6201550032224
724321265342
oct5433603670
91827660037
10745473976
113528896a5
121897a8674
13bb5a1680
1471014292
15456a62a1
hex2c6f07b8

745473976 has 32 divisors (see below), whose sum is σ = 1570736160. Its totient is φ = 329104512.

The previous prime is 745473917. The next prime is 745473977. The reversal of 745473976 is 679374547.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745473977) 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, 153435 + ... + 158218.

It is an arithmetic number, because the mean of its divisors is an integer number (49085505).

Almost surely, 2745473976 is an apocalyptic number.

It is an amenable number.

745473976 is an abundant number, since it is smaller than the sum of its proper divisors (825262184).

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

745473976 is a wasteful number, since it uses less digits than its factorization.

745473976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311695 (or 311691 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 52.

The square root of 745473976 is about 27303.3693158921. The cubic root of 745473976 is about 906.7289784404.

It can be divided in two parts, 745 and 473976, that added together give a square (474721 = 6892).

The spelling of 745473976 in words is "seven hundred forty-five million, four hundred seventy-three thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 184 299 598 1196 2392 311653 623306 1246612 2493224 4051489 7168019 8102978 14336038 16205956 28672076 32411912 57344152 93184247 186368494 372736988 745473976