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70022997 = 321147101149
BaseRepresentation
bin1000010110001…
…11011101010101
311212202112111100
410023013131111
5120411213442
610540500313
71510120452
oct413073525
9155675440
1070022997
1136587350
121b54a699
1311679135
14942a829
15623284c
hex42c7755

70022997 has 48 divisors (see below), whose sum is σ = 114566400. Its totient is φ = 40848000.

The previous prime is 70022959. The next prime is 70023001. The reversal of 70022997 is 79922007.

It is not a de Polignac number, because 70022997 - 211 = 70020949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70023997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469879 + ... + 470027.

It is an arithmetic number, because the mean of its divisors is an integer number (2386800).

Almost surely, 270022997 is an apocalyptic number.

It is an amenable number.

70022997 is a deficient number, since it is larger than the sum of its proper divisors (44543403).

70022997 is a wasteful number, since it uses less digits than its factorization.

70022997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 70022997 is about 8367.9744860988. The cubic root of 70022997 is about 412.1736570384.

It can be divided in two parts, 7002 and 2997, that added together give a palindrome (9999).

The spelling of 70022997 in words is "seventy million, twenty-two thousand, nine hundred ninety-seven".

Divisors: 1 3 9 11 33 47 99 101 141 149 303 423 447 517 909 1111 1341 1551 1639 3333 4653 4747 4917 7003 9999 14241 14751 15049 21009 42723 45147 52217 63027 77033 135441 156651 165539 231099 469953 496617 693297 707303 1489851 2121909 6365727 7780333 23340999 70022997