Search a number
-
+
69350988 = 22371922287
BaseRepresentation
bin1000010001000…
…11011001001100
311211111101200010
410020203121030
5120223212423
610514233220
71501321320
oct410433114
9154441603
1069350988
1136168473
121b285810
13114a22b5
1492d3980
15614d693
hex422364c

69350988 has 72 divisors (see below), whose sum is σ = 195267072. Its totient is φ = 18763488.

The previous prime is 69350951. The next prime is 69351001. The reversal of 69350988 is 88905396.

It is a super-2 number, since 2×693509882 = 9619119073152288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29181 + ... + 31467.

Almost surely, 269350988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69350988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97633536).

69350988 is an abundant number, since it is smaller than the sum of its proper divisors (125916084).

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

69350988 is a wasteful number, since it uses less digits than its factorization.

69350988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 69350988 is about 8327.7240588290. The cubic root of 69350988 is about 410.8508762163.

It can be divided in two parts, 693 and 50988, that added together give a triangular number (51681 = T321).

The spelling of 69350988 in words is "sixty-nine million, three hundred fifty thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 361 399 532 722 798 1083 1444 1596 2166 2287 2527 4332 4574 5054 6861 7581 9148 10108 13722 15162 16009 27444 30324 32018 43453 48027 64036 86906 96054 130359 173812 192108 260718 304171 521436 608342 825607 912513 1216684 1651214 1825026 2476821 3302428 3650052 4953642 5779249 9907284 11558498 17337747 23116996 34675494 69350988