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1220214294 = 23513193133
BaseRepresentation
bin100100010111010…
…1111111000010110
310011001001022100000
41020232233320112
54444333324134
6321025232130
742144436035
oct11056577026
93131038300
101220214294
11576863072
122a0792646
13165a512c0
14b80b271c
15721cee99
hex48bafe16

1220214294 has 48 divisors (see below), whose sum is σ = 2952632592. Its totient is φ = 375448608.

The previous prime is 1220214269. The next prime is 1220214301. The reversal of 1220214294 is 4924120221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90249 + ... + 102884.

It is an arithmetic number, because the mean of its divisors is an integer number (61513179).

Almost surely, 21220214294 is an apocalyptic number.

1220214294 is an abundant number, since it is smaller than the sum of its proper divisors (1732418298).

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

1220214294 is a wasteful number, since it uses less digits than its factorization.

1220214294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193163 (or 193151 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1220214294 is about 34931.5658681371. The cubic root of 1220214294 is about 1068.5922891938.

The spelling of 1220214294 in words is "one billion, two hundred twenty million, two hundred fourteen thousand, two hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 234 243 351 486 702 1053 2106 3159 6318 193133 386266 579399 1158798 1738197 2510729 3476394 5021458 5214591 7532187 10429182 15064374 15643773 22596561 31287546 45193122 46931319 67789683 93862638 135579366 203369049 406738098 610107147 1220214294