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7421353445 = 511433137993
BaseRepresentation
bin1101110100101100…
…01101110111100101
3201011012120211001102
412322112031313211
5110144331302240
63224225205445
7351623314652
oct67226156745
921135524042
107421353445
113169184760
121531490885
139136b29cc
145058bcc29
152d67e9815
hex1ba58dde5

7421353445 has 16 divisors (see below), whose sum is σ = 9941164992. Its totient is φ = 5271826560.

The previous prime is 7421353421. The next prime is 7421353487. The reversal of 7421353445 is 5443531247.

It is a de Polignac number, because none of the positive numbers 2k-7421353445 is a prime.

It is a super-2 number, since 2×74213534452 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7421353399 and 7421353408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566632 + ... + 1571361.

It is an arithmetic number, because the mean of its divisors is an integer number (621322812).

Almost surely, 27421353445 is an apocalyptic number.

It is an amenable number.

7421353445 is a deficient number, since it is larger than the sum of its proper divisors (2519811547).

7421353445 is a wasteful number, since it uses less digits than its factorization.

7421353445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138052.

The product of its digits is 201600, while the sum is 38.

The square root of 7421353445 is about 86147.2776412581. The cubic root of 7421353445 is about 1950.5677457073.

The spelling of 7421353445 in words is "seven billion, four hundred twenty-one million, three hundred fifty-three thousand, four hundred forty-five".

Divisors: 1 5 11 43 55 215 473 2365 3137993 15689965 34517923 134933699 172589615 674668495 1484270689 7421353445