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70272216 = 23327139429
BaseRepresentation
bin1000011000001…
…00010011011000
311220020012100200
410030010103120
5120442202331
610550102200
71512206160
oct414042330
9156205320
1070272216
1136737613
121b64a960
13117356c1
1494935a0
1562815e6
hex43044d8

70272216 has 48 divisors (see below), whose sum is σ = 217510800. Its totient is φ = 20077632.

The previous prime is 70272211. The next prime is 70272217. The reversal of 70272216 is 61227207.

It is a self number, because there is not a number n which added to its sum of digits gives 70272216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70272211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69211 + ... + 70218.

It is an arithmetic number, because the mean of its divisors is an integer number (4531475).

Almost surely, 270272216 is an apocalyptic number.

It is an amenable number.

70272216 is an abundant number, since it is smaller than the sum of its proper divisors (147238584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70272216 is a wasteful number, since it uses less digits than its factorization.

70272216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139448 (or 139441 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70272216 is about 8382.8524978077. The cubic root of 70272216 is about 412.6620674463.

The spelling of 70272216 in words is "seventy million, two hundred seventy-two thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 139429 278858 418287 557716 836574 976003 1115432 1254861 1673148 1952006 2509722 2928009 3346296 3904012 5019444 5856018 7808024 8784027 10038888 11712036 17568054 23424072 35136108 70272216