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1684104855213 = 311431186825127
BaseRepresentation
bin11000100000011100011…
…110001011111010101101
312221222222011101210201210
4120200130132023322231
5210043021320331323
63325400031425033
7232446455035404
oct30403436137255
95858864353653
101684104855213
1159a252316aa0
12232483385179
13c2a6c602c61
145b7226b263b
152dc1a13b293
hex1881c78bead

1684104855213 has 16 divisors (see below), whose sum is σ = 2506574670336. Its totient is φ = 996933105840.

The previous prime is 1684104855193. The next prime is 1684104855239. The reversal of 1684104855213 is 3125584014861.

It is a happy number.

It is not a de Polignac number, because 1684104855213 - 26 = 1684104855149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684104855253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593411145 + ... + 593413982.

It is an arithmetic number, because the mean of its divisors is an integer number (156660916896).

Almost surely, 21684104855213 is an apocalyptic number.

It is an amenable number.

1684104855213 is a deficient number, since it is larger than the sum of its proper divisors (822469815123).

1684104855213 is a wasteful number, since it uses less digits than its factorization.

1684104855213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186825184.

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 1684104855213 in words is "one trillion, six hundred eighty-four billion, one hundred four million, eight hundred fifty-five thousand, two hundred thirteen".

Divisors: 1 3 11 33 43 129 473 1419 1186825127 3560475381 13055076397 39165229191 51033480461 153100441383 561368285071 1684104855213