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29920184972 = 227480046243
BaseRepresentation
bin11011110111011000…
…011100101010001100
32212020012002212201222
4123313120130222030
5442234031404342
621424541222512
72106310242656
oct336730345214
985205085658
1029920184972
11117641898a7
125970261a38
132a8a99ac82
14163b9cd6d6
15ba1b0eed2
hex6f761ca8c

29920184972 has 6 divisors (see below), whose sum is σ = 52360323708. Its totient is φ = 14960092484.

The previous prime is 29920184951. The next prime is 29920184989. The reversal of 29920184972 is 27948102992.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740023118 + ... + 3740023125.

It is an arithmetic number, because the mean of its divisors is an integer number (8726720618).

Almost surely, 229920184972 is an apocalyptic number.

It is an amenable number.

29920184972 is a deficient number, since it is larger than the sum of its proper divisors (22440138736).

29920184972 is a wasteful number, since it uses less digits than its factorization.

29920184972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480046247 (or 7480046245 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 29920184972 in words is "twenty-nine billion, nine hundred twenty million, one hundred eighty-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 7480046243 14960092486 29920184972