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161462331473 = 1391339986693
BaseRepresentation
bin1001011001011111100…
…1111010100001010001
3120102202120212021122212
42112113321322201101
510121133324101343
6202101430041505
714444121113162
oct2262771724121
9512676767585
10161462331473
1162526305473
12273614a9295
13122c2200611
147b59c0d769
154300045c18
hex2597e7a851

161462331473 has 8 divisors (see below), whose sum is σ = 162637944000. Its totient is φ = 160286919408.

The previous prime is 161462331449. The next prime is 161462331491. The reversal of 161462331473 is 374133264161.

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

It is a cyclic number.

It is not a de Polignac number, because 161462331473 - 214 = 161462315089 is a prime.

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 161462331473.

It is not an unprimeable number, because it can be changed into a prime (161462331403) 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, 1819115 + ... + 1905807.

It is an arithmetic number, because the mean of its divisors is an integer number (20329743000).

Almost surely, 2161462331473 is an apocalyptic number.

It is an amenable number.

161462331473 is a deficient number, since it is larger than the sum of its proper divisors (1175612527).

161462331473 is a wasteful number, since it uses less digits than its factorization.

161462331473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100231.

The product of its digits is 217728, while the sum is 41.

The spelling of 161462331473 in words is "one hundred sixty-one billion, four hundred sixty-two million, three hundred thirty-one thousand, four hundred seventy-three".

Divisors: 1 139 13399 86693 1862461 12050327 1161599507 161462331473