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52215396 = 2234351283
BaseRepresentation
bin1100011100101…
…1111001100100
310122020211001120
43013023321210
5101331343041
65103053540
71202552322
oct307137144
9118224046
1052215396
1127524222
12155a12b0
13aa828ac
146d12d12
1548b6366
hex31cbe64

52215396 has 12 divisors (see below), whose sum is σ = 121835952. Its totient is φ = 17405128.

The previous prime is 52215343. The next prime is 52215409. The reversal of 52215396 is 69351225.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175630 + ... + 2175653.

It is an arithmetic number, because the mean of its divisors is an integer number (10152996).

Almost surely, 252215396 is an apocalyptic number.

It is an amenable number.

52215396 is an abundant number, since it is smaller than the sum of its proper divisors (69620556).

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

52215396 is a wasteful number, since it uses less digits than its factorization.

52215396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351290 (or 4351288 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 52215396 is about 7226.0221422301. The cubic root of 52215396 is about 373.7657698144.

The spelling of 52215396 in words is "fifty-two million, two hundred fifteen thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 4351283 8702566 13053849 17405132 26107698 52215396