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1941802941 = 31349789819
BaseRepresentation
bin111001110111101…
…1000111110111101
312000022211210212110
41303233120332331
512434100143231
6520403324233
766056024031
oct16357307675
95008753773
101941802941
11907108321
12462380679
1324c3abc30
14145c6a1c1
15b5719046
hex73bd8fbd

1941802941 has 8 divisors (see below), whose sum is σ = 2788229920. Its totient is φ = 1194955632.

The previous prime is 1941802921. The next prime is 1941802997. The reversal of 1941802941 is 1492081491.

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

It is not a de Polignac number, because 1941802941 - 213 = 1941794749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 49789819 = 1941802941 / (1 + 9 + 4 + 1 + 8 + 0 + 2 + 9 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1941802941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941802921) 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, 24894871 + ... + 24894948.

It is an arithmetic number, because the mean of its divisors is an integer number (348528740).

Almost surely, 21941802941 is an apocalyptic number.

It is an amenable number.

1941802941 is a deficient number, since it is larger than the sum of its proper divisors (846426979).

1941802941 is a wasteful number, since it uses less digits than its factorization.

1941802941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49789835.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1941802941 is about 44065.8931714767. The cubic root of 1941802941 is about 1247.5799451044.

The spelling of 1941802941 in words is "one billion, nine hundred forty-one million, eight hundred two thousand, nine hundred forty-one".

Divisors: 1 3 13 39 49789819 149369457 647267647 1941802941