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7230909745 = 512891121941
BaseRepresentation
bin1101011101111111…
…01110110100110001
3200122221020021102001
412232333232310301
5104302103102440
63153303254001
7344121501343
oct65677566461
920587207361
107230909745
113080729574
12149974a301
138b30c3327
144c84a7293
152c4c2bb9a
hex1aefeed31

7230909745 has 8 divisors (see below), whose sum is σ = 8683831080. Its totient is φ = 5780234880.

The previous prime is 7230909733. The next prime is 7230909757. The reversal of 7230909745 is 5479090327.

It is an interprime number because it is at equal distance from previous prime (7230909733) and next prime (7230909757).

It can be written as a sum of positive squares in 4 ways, for example, as 3599160049 + 3631749696 = 59993^2 + 60264^2 .

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

It is not a de Polignac number, because 7230909745 - 213 = 7230901553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7230909695 and 7230909704.

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, 554526 + ... + 567415.

It is an arithmetic number, because the mean of its divisors is an integer number (1085478885).

Almost surely, 27230909745 is an apocalyptic number.

It is an amenable number.

7230909745 is a deficient number, since it is larger than the sum of its proper divisors (1452921335).

7230909745 is a wasteful number, since it uses less digits than its factorization.

7230909745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123235.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 7230909745 is about 85034.7561000795. The cubic root of 7230909745 is about 1933.7380679764.

The spelling of 7230909745 in words is "seven billion, two hundred thirty million, nine hundred nine thousand, seven hundred forty-five".

Divisors: 1 5 1289 6445 1121941 5609705 1446181949 7230909745