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355542030769 = 500970980641
BaseRepresentation
bin1010010110001111111…
…01001101100110110001
31020222201100001112100211
411023013331031212301
521311122224441034
6431200031344121
734454443253242
oct5130775154661
91228640045324
10355542030769
1112786a231072
1258aa6382041
13276b1b0a283
14132cb90acc9
1593ad876d64
hex52c7f4d9b1

355542030769 has 4 divisors (see below), whose sum is σ = 355613016420. Its totient is φ = 355471045120.

The previous prime is 355542030743. The next prime is 355542030821. The reversal of 355542030769 is 967030245553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 299770485169 + 55771545600 = 547513^2 + 236160^2 .

It is a cyclic number.

It is not a de Polignac number, because 355542030769 - 215 = 355541998001 is a prime.

It is a super-2 number, since 2×3555420307692 (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355542034769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35485312 + ... + 35495329.

It is an arithmetic number, because the mean of its divisors is an integer number (88903254105).

Almost surely, 2355542030769 is an apocalyptic number.

It is an amenable number.

355542030769 is a deficient number, since it is larger than the sum of its proper divisors (70985651).

355542030769 is an equidigital number, since it uses as much as digits as its factorization.

355542030769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70985650.

The product of its (nonzero) digits is 3402000, while the sum is 49.

The spelling of 355542030769 in words is "three hundred fifty-five billion, five hundred forty-two million, thirty thousand, seven hundred sixty-nine".

Divisors: 1 5009 70980641 355542030769