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1202240141 = 1916294451
BaseRepresentation
bin100011110101000…
…1011101010001101
310002210020010102122
41013222023222031
54430233141031
6315144102325
741535605204
oct10752135215
93083203378
101202240141
115676a68a3
122967649a5
131620c9ccb
14b595423b
157082e47b
hex47a8ba8d

1202240141 has 4 divisors (see below), whose sum is σ = 1208534784. Its totient is φ = 1195945500.

The previous prime is 1202240113. The next prime is 1202240173. The reversal of 1202240141 is 1410422021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1410422021 = 3391415931.

It is a cyclic number.

It is not a de Polignac number, because 1202240141 - 26 = 1202240077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202240101) 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, 3147035 + ... + 3147416.

It is an arithmetic number, because the mean of its divisors is an integer number (302133696).

Almost surely, 21202240141 is an apocalyptic number.

It is an amenable number.

1202240141 is a deficient number, since it is larger than the sum of its proper divisors (6294643).

1202240141 is an equidigital number, since it uses as much as digits as its factorization.

1202240141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294642.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1202240141 is about 34673.3347256937. The cubic root of 1202240141 is about 1063.3194095348.

Adding to 1202240141 its reverse (1410422021), we get a palindrome (2612662162).

The spelling of 1202240141 in words is "one billion, two hundred two million, two hundred forty thousand, one hundred forty-one".

Divisors: 1 191 6294451 1202240141