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161210001572054 = 21375031169697157
BaseRepresentation
bin100100101001111010100000…
…111000001100000011010110
3210010210112012012010122210222
4210221322200320030003112
5132112231040400301204
61330510504034114342
745646016060014151
oct4451724070140326
9703715165118728
10161210001572054
11474038611734a6
12160b76b341b9b2
136bc50653c9cb6
142bb486a0c4c98
15139869712babe
hex929ea0e0c0d6

161210001572054 has 16 divisors (see below), whose sum is σ = 244064330199648. Its totient is φ = 79857564234432.

The previous prime is 161210001572051. The next prime is 161210001572071. The reversal of 161210001572054 is 450275100012161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161210001572051) 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, 584710757 + ... + 584986400.

It is an arithmetic number, because the mean of its divisors is an integer number (15254020637478).

Almost surely, 2161210001572054 is an apocalyptic number.

161210001572054 is a deficient number, since it is larger than the sum of its proper divisors (82854328627594).

161210001572054 is a wasteful number, since it uses less digits than its factorization.

161210001572054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169697799.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 161210001572054 in words is "one hundred sixty-one trillion, two hundred ten billion, one million, five hundred seventy-two thousand, fifty-four".

Divisors: 1 2 137 274 503 1006 68911 137822 1169697157 2339394314 160248510509 320497021018 588357669971 1176715339942 80605000786027 161210001572054