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70006992 = 24311132589
BaseRepresentation
bin1000010110000…
…11100011010000
311212201201112120
410023003203100
5120410210432
610540254240
71510023006
oct413034320
9155651476
1070006992
1136576320
121b541380
1311671a73
149424a76
15622cc2c
hex42c38d0

70006992 has 40 divisors (see below), whose sum is σ = 197293920. Its totient is φ = 21214080.

The previous prime is 70006991. The next prime is 70007029. The reversal of 70006992 is 29960007.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70006991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65767 + ... + 66822.

It is an arithmetic number, because the mean of its divisors is an integer number (4932348).

Almost surely, 270006992 is an apocalyptic number.

It is an amenable number.

70006992 is an abundant number, since it is smaller than the sum of its proper divisors (127286928).

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

70006992 is a wasteful number, since it uses less digits than its factorization.

70006992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132611 (or 132605 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 70006992 is about 8367.0181068287. The cubic root of 70006992 is about 412.1422514415.

Adding to 70006992 its reverse (29960007), we get a palindrome (99966999).

The spelling of 70006992 in words is "seventy million, six thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 132589 265178 397767 530356 795534 1060712 1458479 1591068 2121424 2916958 3182136 4375437 5833916 6364272 8750874 11667832 17501748 23335664 35003496 70006992